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205 relations: Abies concolor, Abies magnifica, Acer macrophyllum, Achomawi, Ah Pah Dam, Alluvium, Arbutus, Arizona, As the crow flies, Athabaskan languages, Austria, Bald eagle, Baseflow, Batholith, Beaver, Big Bar, Trinity County, California, Black oak, Black-tailed deer, Borax Lake Site, Bureau of Land Management, Burnt Ranch, California, California, California Department of Fish and Wildlife, California Gold Rush, California Office of Environmental Health Hazard Assessment, California State Route 299, California State Route 36, Calocedrus, Cascadia subduction zone, Central Valley (California), Central Valley Project, Chamaecyparis lawsoniana, Chaparral, Chert, Chimariko, Chinook salmon, Christmas flood of 1964, Cirque, Clair Engle, Clear Creek (Sacramento River tributary), Clearcutting, Coffee Creek, California, Coho salmon, Colorado River, Cottonwood Creek (Sacramento River tributary), Cretaceous, Dentalium shell, Diorite, Discharge (hydrology), Douglas City, California, ..., Douglas fir, Drainage basin, Dredging, Eminent domain, Eureka, California, Ewing Young, Exonym and endonym, Fish kill, Fish migration, Franciscan Assemblage, Gabbro, Geomorphology, Glacier, Gold, Granite, Great Depression, Great Flood of 1862, Great Pyramid of Giza, Greywacke, Groundwater, Guangdong, Hayfork Creek, Hayfork, California, Helena, California, Hokan languages, Hoopa, California, Hudson's Bay Company, Humboldt Bay, Humboldt County, California, Hupa, Hyampom, California, Hydraulic mining, Igneous rock, Imperial Valley, International scale of river difficulty, James Hilton (novelist), Jedediah Smith, Jeffrey pine, John C. Frémont, Junction City, California, Jurassic, Karuk, Kesterson Reservoir, Keswick Dam, Kilowatt hour, Klamath Mountains, Klamath River, Knobcone pine, La Grange Mine, Lewiston Dam (California), Lewiston, California, Limestone, List of rivers of California, Little brown bat, Mad River (California), Maidu, Marble, Marten, Mass wasting, McCloud River, Mediterranean climate, Metamorphic rock, Mother lode, National Audubon Society, National Wild and Scenic Rivers System, Natural resource, Natural Resources Conservation Service, New River (Trinity River tributary), Nomlaki, North American Plate, North Coast (California), North Fork Trinity River, Northern flying squirrel, Notholithocarpus, Oncorhynchus, Orogeny, Oroville Dam, Pacific Coast Ranges, Pacific Ocean, Pacific Plate, Pearl River Delta, Pierson B. Reading, Pinus lambertiana, Pinus ponderosa, Placer mining, Polychlorinated biphenyl, Population density, Portage, Quartz, Quercus chrysolepis, Quercus garryana, Rafting, Rainbow trout, Redwood Creek (Humboldt County), Ring-tailed cat, Riparian zone, Sacramento River, Sacramento Valley, Salmon Mountains, Salmon River (California), Salvage logging, Salyer, California, San Joaquin Valley, Sandstone, Schist, Scott Mountains (California), Scott River, Secondary forest, Sediment, Selenium, Sequoioideae, Serpentine subgroup, Shasta Dam, Shasta people, Shasta–Trinity National Forest, Sierra Club, Sierra Nevada (U.S.), Smith River (California), Snowmelt, South Fork Trinity River, Southern Pacific Transportation Company, Stamp mill, Stream gauge, Stuart Fork Trinity River, Sturgeon, Sutter's Mill, Tailings, Taoism, Tarn (lake), Terrane, The Wilderness Society (United States), Trinidad, California, Trinity Alps, Trinity Alps Wilderness, Trinity County, California, Trinity Dam, Trinity Lake, Trinity Mountains, United States, United States Bureau of Reclamation, United States Forest Service, United States Geological Survey, Urban area, Weaverville, California, Weitchpec, California, Westlands Water District, Whiskeytown Lake, Whiskeytown, California, Wildfire, Willow Creek, California, Wintu, Wintuan languages, World War II, Yana people, Yurok. Expand index (155 more) »
Abies concolor
Abies concolor, the white fir, is a coniferous tree in the pine family Pinaceae.
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Abies magnifica
Abies magnifica, the red fir or silvertip fir, is a western North American fir, native to the mountains of southwest Oregon and California in the United States.
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Acer macrophyllum
Acer macrophyllum, the bigleaf maple or Oregon maple, is a large deciduous tree in the genus Acer.
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Achomawi
Achomawi (also Achumawi, Ajumawi and Ahjumawi), are the northerly nine (out of eleven) tribes of the Pit River tribe of Native Americans who live in what is now northeastern California in the United States.
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Ah Pah Dam
Ah Pah Dam was a proposed dam on the Klamath River in the U.S. state of California proposed by the United States Bureau of Reclamation as part of its United Western Investigation study in 1951.
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Alluvium
Alluvium (from the Latin alluvius, from alluere, "to wash against") is loose, unconsolidated (not cemented together into a solid rock) soil or sediments, which has been eroded, reshaped by water in some form, and redeposited in a non-marine setting.
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Arbutus
Arbutus is a genus of 12 accepted speciesAct.
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Arizona
Arizona (Hoozdo Hahoodzo; Alĭ ṣonak) is a U.S. state in the southwestern region of the United States.
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As the crow flies
As the crow flies, similar to in a beeline, is an idiom for the most direct path between two points.
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Athabaskan languages
Athabaskan or Athabascan (also Dene, Athapascan, Athapaskan) is a large family of indigenous languages of North America, located in western North America in three groups of contiguous languages: Northern, Pacific Coast and Southern (or Apachean).
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Austria
Austria (Österreich), officially the Republic of Austria (Republik Österreich), is a federal republic and a landlocked country of over 8.8 million people in Central Europe.
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Bald eagle
The bald eagle (Haliaeetus leucocephalus, from Greek ἅλς, hals "sea", αἰετός aietos "eagle", λευκός, leukos "white", κεφαλή, kephalē "head") is a bird of prey found in North America.
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Baseflow
Baseflow is the portion of the streamflow that is sustained between precipitation events, fed to streams by delayed pathways.
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Batholith
A batholith (from Greek bathos, depth + lithos, rock) is a large mass of intrusive igneous rock (also called plutonic rock), larger than in area, that forms from cooled magma deep in the Earth's crust.
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Beaver
The beaver (genus Castor) is a large, primarily nocturnal, semiaquatic rodent.
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Big Bar, Trinity County, California
Big Bar is an unincorporated community in Trinity County, California, United States.
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Black oak
Black oak is a common name for several species of tree.
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Black-tailed deer
Two forms of black-tailed deer or blacktail deer that occupy coastal woodlands in the Pacific Northwest are subspecies of the mule deer (Odocoileus hemionus).
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Borax Lake Site
The Borax Lake Site, also known as the Borax Lake—Hodges Archaeological Site and designated by the Smithsonian trinomial CA-LAK-36, is a prehistoric archaeological site near Clearlake, California.
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Bureau of Land Management
The Bureau of Land Management (BLM) is an agency within the United States Department of the Interior that administers more than of public lands in the United States which constitutes one-eighth of the landmass of the country.
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Burnt Ranch, California
Burnt Ranch is a census-designated place (CDP) in Trinity County, California.
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California
California is a state in the Pacific Region of the United States.
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California Department of Fish and Wildlife
The California Department of Fish and Wildlife (CDFW), formerly known as the California Department of Fish and Game (CDFG), is a state agency under the California Natural Resources Agency.
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California Gold Rush
The California Gold Rush (1848–1855) began on January 24, 1848, when gold was found by James W. Marshall at Sutter's Mill in Coloma, California.
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California Office of Environmental Health Hazard Assessment
The Office of Environmental Health Hazard Assessment, commonly referred to as OEHHA (pronounced oh-EEE-ha), is a specialized department within the cabinet-level California Environmental Protection Agency (CalEPA) with responsibility for evaluating health risks from environmental chemical contaminants.
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California State Route 299
State Route 299 (SR 299) is a state highway in the state of California that runs across the northern part of the state.
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California State Route 36
State Route 36 (SR 36) is an east–west state highway in the U.S. state of California that is routed from U.S. Route 101 in Humboldt County to U.S. Route 395 just east of Susanville in Lassen County.
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Calocedrus
Calocedrus (common name incense cedar, alternatively spelled incense-cedar) is a genus of coniferous trees in the cypress family Cupressaceae first described as a genus in 1873.
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Cascadia subduction zone
The Cascadia subduction zone (also referred to as the Cascadia fault) is a convergent plate boundary that stretches from northern Vancouver Island to Northern California.
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Central Valley (California)
The Central Valley is a flat valley that dominates the geographical center of the U.S. state of California.
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Central Valley Project
The Central Valley Project (CVP) is a federal water management project in the U.S. state of California under the supervision of the United States Bureau of Reclamation (USBR).
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Chamaecyparis lawsoniana
Chamaecyparis lawsoniana, known as Port Orford cedar or Lawson cypress, is a species of conifer in the genus Chamaecyparis, family Cupressaceae.
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Chaparral
Chaparral is a shrubland or heathland plant community found primarily in the US state of California and in the northern portion of the Baja California Peninsula, Mexico.
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Chert
Chert is a fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline silica, the mineral form of silicon dioxide (SiO2).
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Chimariko
The Chimariko are an indigenous people of California, who originally lived in a narrow, 20-mile section of canyon on the Trinity River in Trinity County in northwestern California.
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Chinook salmon
The Chinook salmon (Oncorhynchus tshawytscha) is the largest species in the Pacific salmon genus Oncorhynchus.
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Christmas flood of 1964
The Christmas flood of 1964 was a major flood in the Pacific Northwest and some of Northern California between December 18, 1964, and January 7, 1965, spanning the Christmas holiday.
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Cirque
Two cirques with semi-permanent snowpatches near Abisko National Park, Sweden A cirque (French, from the Latin word circus) is an amphitheatre-like valley formed by glacial erosion.
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Clair Engle
Clair Engle (September 21, 1911July 30, 1964) was an American politician of the Democratic Party and a United States Senator from California.
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Clear Creek (Sacramento River tributary)
Clear Creek (Ínaam in Karuk) is a tributary of the upper Sacramento River in northern California.
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Clearcutting
Clearcutting, clearfelling or clearcut logging is a forestry/logging practice in which most or all trees in an area are uniformly cut down.
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Coffee Creek, California
Coffee Creek is a census-designated place located within Trinity County in the U.S. state of California.
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Coho salmon
The coho salmon (Oncorhynchus kisutch; Karuk: achvuun) is a species of anadromous fish in the salmon family, one of the several species of Pacific salmon.
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Colorado River
The Colorado River is one of the principal rivers of the Southwestern United States and northern Mexico (the other being the Rio Grande).
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Cottonwood Creek (Sacramento River tributary)
Cottonwood Creek is a major stream and tributary of the Sacramento River in Northern California.
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Cretaceous
The Cretaceous is a geologic period and system that spans 79 million years from the end of the Jurassic Period million years ago (mya) to the beginning of the Paleogene Period mya.
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Dentalium shell
The word dentalium, as commonly used by Native American artists and anthropologists, refers to tooth shells or tusk shells used in indigenous jewelry, adornment, and commerce in western Canada and the United States.
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Diorite
Diorite is an intrusive igneous rock composed principally of the silicate minerals plagioclase feldspar (typically andesine), biotite, hornblende, and/or pyroxene.
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Discharge (hydrology)
In hydrology, discharge is the volumetric flow rate of water that is transported through a given cross-sectional area.
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Douglas City, California
Douglas City is a census-designated place (CDP) in Trinity County, California first settled during the California Gold Rush.
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Douglas fir
Pseudotsuga menziesii, commonly known as Douglas fir, Douglas-fir and Oregon pine, is an evergreen conifer species native to western North America.
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Drainage basin
A drainage basin is any area of land where precipitation collects and drains off into a common outlet, such as into a river, bay, or other body of water.
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Dredging
Dredging is an excavation activity usually carried out underwater, in harbours, shallow seas or freshwater areas with the purpose of gathering up bottom sediments to deepen or widen the sea bottom / channel.
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Eminent domain
Eminent domain (United States, Philippines), land acquisition (Singapore), compulsory purchase (United Kingdom, New Zealand, Ireland), resumption (Hong Kong, Uganda), resumption/compulsory acquisition (Australia), or expropriation (France, Italy, Mexico, South Africa, Canada, Brazil, Portugal, Spain, Chile, Denmark, Sweden) is the power of a state, provincial, or national government to take private property for public use.
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Eureka, California
Eureka (Hupa: do'-wi-lotl-ding, Karuk: uuth) is the principal city and county seat of Humboldt County in the Redwood Empire region of California.
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Ewing Young
Ewing Young (1799 – February 9, 1841) was an American fur trapper and trader from Tennessee who traveled in what was then the northern Mexico frontier territories of Santa Fe de Nuevo México and Alta California before settling in the Oregon Country.
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Exonym and endonym
An exonym or xenonym is an external name for a geographical place, or a group of people, an individual person, or a language or dialect.
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Fish kill
The term fish kill, known also as fish die-off, refers to a localized die-off of fish populations which may also be associated with more generalized mortality of aquatic life.
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Fish migration
Many types of fish migrate on a regular basis, on time scales ranging from daily to annually or longer, and over distances ranging from a few metres to thousands of kilometres.
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Franciscan Assemblage
Franciscan Assemblage or Franciscan Complex is a geologic term for a late Mesozoic terrane of heterogeneous rocks found throughout the California Coast Ranges, and particularly on the San Francisco Peninsula.
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Gabbro
Gabbro refers to a large group of dark, often phaneritic (coarse-grained), mafic intrusive igneous rocks chemically equivalent to basalt, being its coarse-grained analogue.
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Geomorphology
Geomorphology (from Ancient Greek: γῆ, gê, "earth"; μορφή, morphḗ, "form"; and λόγος, lógos, "study") is the scientific study of the origin and evolution of topographic and bathymetric features created by physical, chemical or biological processes operating at or near the Earth's surface.
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Glacier
A glacier is a persistent body of dense ice that is constantly moving under its own weight; it forms where the accumulation of snow exceeds its ablation (melting and sublimation) over many years, often centuries.
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Gold
Gold is a chemical element with symbol Au (from aurum) and atomic number 79, making it one of the higher atomic number elements that occur naturally.
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Granite
Granite is a common type of felsic intrusive igneous rock that is granular and phaneritic in texture.
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Great Depression
The Great Depression was a severe worldwide economic depression that took place mostly during the 1930s, beginning in the United States.
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Great Flood of 1862
The Great Flood of 1862 was the largest flood in the recorded history of Oregon, Nevada, and California, occurring from December 1861 to January 1862.
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Great Pyramid of Giza
The Great Pyramid of Giza (also known as the Pyramid of Khufu or the Pyramid of Cheops) is the oldest and largest of the three pyramids in the Giza pyramid complex bordering what is now El Giza, Egypt.
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Greywacke
Greywacke or Graywacke (German grauwacke, signifying a grey, earthy rock) is a variety of sandstone generally characterized by its hardness, dark color, and poorly sorted angular grains of quartz, feldspar, and small rock fragments or lithic fragments set in a compact, clay-fine matrix.
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Groundwater
Groundwater is the water present beneath Earth's surface in soil pore spaces and in the fractures of rock formations.
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Guangdong
Guangdong is a province in South China, located on the South China Sea coast.
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Hayfork Creek
Hayfork Creek is a tributary of the South Fork Trinity River in Northern California in the United States.
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Hayfork, California
Hayfork is a census-designated place (CDP) in Trinity County, California, United States.
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Helena, California
Helena is an unincorporated community in Trinity County, California, United States.
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Hokan languages
The Hokan language family is a hypothetical grouping of a dozen small language families that were spoken mainly in California, Arizona and Baja California.
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Hoopa, California
Hoopa (formerly, Hupa, Ho-pah, Hoo-pah, Hupo, and Up-pa) is an unincorporated community and census-designated place (CDP) in Humboldt County, California.
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Hudson's Bay Company
The Hudson's Bay Company (HBC; Compagnie de la Baie d'Hudson) is a Canadian retail business group.
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Humboldt Bay
Humboldt Bay is a natural bay and a multi-basin, bar-built coastal lagoon located on the rugged North Coast of California, entirely within Humboldt County.
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Humboldt County, California
Humboldt County is a county in the U.S. state of California.
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Hupa
Hupa are a Native American people of the Athabaskan-speaking ethnolinguistic group in northwestern California.
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Hyampom, California
Hyampom is a census-designated place (CDP) in Trinity County, California.
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Hydraulic mining
Hydraulic mining, or hydraulicking, is a form of mining that uses high-pressure jets of water to dislodge rock material or move sediment.
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Igneous rock
Igneous rock (derived from the Latin word ignis meaning fire), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic.
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Imperial Valley
The Imperial Valley lies in California's Imperial County.
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International scale of river difficulty
The international scale of river difficulty is an American system used to rate the difficulty of navigating a stretch of river, or a single (sometimes whitewater) rapid.
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James Hilton (novelist)
James Hilton (9 September 190020 December 1954) was an English novelist best remembered for several best-sellers, including Lost Horizon and Goodbye, Mr. Chips.
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Jedediah Smith
Jedediah Strong Smith (January 6, 1799 – May 27, 1831), was a clerk, frontiersman, hunter, trapper, author, cartographer, and explorer of the Rocky Mountains, the North American West, and the Southwest during the early 19th century.
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Jeffrey pine
Jeffrey pine (Pinus jeffreyi) also known as Jeffrey's pine, yellow pine and black pine, is a North American pine tree.
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John C. Frémont
John Charles Frémont or Fremont (January 21, 1813July 13, 1890) was an American explorer, politician, and soldier who, in 1856, became the first candidate of the Republican Party for the office of President of the United States.
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Junction City, California
Junction City is a census-designated place (CDP) in Trinity County, California.
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Jurassic
The Jurassic (from Jura Mountains) was a geologic period and system that spanned 56 million years from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period Mya.
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Karuk
The Karuk people are an indigenous people of California, and the Karuk Tribe is one of the largest tribes in California.
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Kesterson Reservoir
The Kesterson Reservoir is the name of a former unit of the Kesterson National Wildlife Refuge which is part of the current San Luis National Wildlife Refuge.
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Keswick Dam
Keswick Dam is a concrete gravity dam on the Sacramento River about northwest of Redding, California.
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Kilowatt hour
The kilowatt hour (symbol kWh, kW⋅h or kW h) is a unit of energy equal to 3.6 megajoules.
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Klamath Mountains
The Klamath Mountains are a rugged and lightly populated mountain range in northwestern California and southwestern Oregon in the western United States.
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Klamath River
The Klamath River (Karuk: Ishkêesh, Klamath: Koke, Yurok: Hehlkeek 'We-Roy) flows through Oregon and northern California in the United States, emptying into the Pacific Ocean.
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Knobcone pine
The knobcone pine, Pinus attenuata, (also called Pinus tuberculata) is a tree that grows in mild climates on poor soils.
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La Grange Mine
The La Grange Mine is a former mine located in Trinity County, California.
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Lewiston Dam (California)
Lewiston Dam is an earthfill dam on the Trinity River that forms Lewiston Lake near Weaverville, California, United States.
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Lewiston, California
Lewiston is a census-designated place (CDP) in Trinity County, California, United States.
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Limestone
Limestone is a sedimentary rock, composed mainly of skeletal fragments of marine organisms such as coral, forams and molluscs.
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List of rivers of California
This is a list of rivers in the U.S. state of California, grouped by region.
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Little brown bat
The little brown bat (sometimes called little brown myotis) (Myotis lucifugus) is a species of the genus Myotis (mouse-eared bats), one of the most common bats of North America.
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Mad River (California)
The Mad River is a river in upper Northern California.
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Maidu
The Maidu are a Native American people of northern California.
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Marble
Marble is a metamorphic rock composed of recrystallized carbonate minerals, most commonly calcite or dolomite.
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Marten
The martens constitute the genus Martes within the subfamily Mustelinae, in the family Mustelidae.
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Mass wasting
Mass wasting, also known as slope movement or mass movement, is the geomorphic process by which soil, sand, regolith, and rock move downslope typically as a solid, continuous or discontinuous mass, largely under the force of gravity, but frequently with characteristics of a flow as in debris flows and mudflows.
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McCloud River
The McCloud River is a river that flows east of and parallel to the Sacramento River, long,U.S. Geological Survey.
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Mediterranean climate
A Mediterranean climate or dry summer climate is characterized by rainy winters and dry summers.
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Metamorphic rock
Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means "change in form".
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Mother lode
Mother lode is a principal vein or zone of gold or silver ore.
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National Audubon Society
The National Audubon Society (Audubon) is a non-profit environmental organization dedicated to conservation.
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National Wild and Scenic Rivers System
The National Wild and Scenic River is a designation for certain protected areas in the United States.
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Natural resource
Natural resources are resources that exist without actions of humankind.
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Natural Resources Conservation Service
Natural Resources Conservation Service (NRCS), formerly known as the Soil Conservation Service (SCS), is an agency of the United States Department of Agriculture (USDA) that provides technical assistance to farmers and other private landowners and managers.
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New River (Trinity River tributary)
The New River (Karuk: akráah kumásaamvaroo), is a U.S. Geological Survey.
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Nomlaki
The Nomlaki (also Noamlakee, Central Wintu, Nomelaki) are a Wintun people native to the area of the Sacramento Valley, extending westward to the Coast Range in Northern California.
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North American Plate
The North American Plate is a tectonic plate covering most of North America, Greenland, Cuba, the Bahamas, extreme northeastern Asia, and parts of Iceland and the Azores.
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North Coast (California)
The North Coast of California (also called the Redwood Empire or the Redwood Coast) is the region in Northern California that lies on the Pacific coast between San Francisco Bay and the Oregon border.
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North Fork Trinity River
The North Fork Trinity River is a tributary of the Trinity River in the U.S. state of California.
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Northern flying squirrel
The northern flying squirrel (Glaucomys sabrinus) is one of three species of the genus Glaucomys, the only flying squirrels found in North America.
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Notholithocarpus
Notholithocarpus densiflorus, commonly known as the tanoak or tanbark-oak, is an evergreen tree in the beech family (Fagaceae), native to the western United States, in California as far south as the Transverse Ranges, north to southwest Oregon, and east in the Sierra Nevada.
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Oncorhynchus
Oncorhynchus is a genus of fish in the family Salmonidae; it contains the Pacific salmon and Pacific trout.
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Orogeny
An orogeny is an event that leads to a large structural deformation of the Earth's lithosphere (crust and uppermost mantle) due to the interaction between plate tectonics.
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Oroville Dam
Oroville Dam is an earthfill embankment dam on the Feather River east of the city of Oroville, California, in the Sierra Nevada foothills east of the Sacramento Valley.
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Pacific Coast Ranges
The Pacific Coast Ranges (officially gazetted as the Pacific Mountain System in the United States but referred to as the Pacific Coast Ranges), are the series of mountain ranges that stretch along the West Coast of North America from Alaska south to Northern and Central Mexico.
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Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's oceanic divisions.
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Pacific Plate
The Pacific Plate is an oceanic tectonic plate that lies beneath the Pacific Ocean.
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Pearl River Delta
The Pearl River Delta Metropolitan Region (PRD), also known as Zhujiang Delta or Zhusanjiao, is the low-lying area surrounding the Pearl River estuary, where the Pearl River flows into the South China Sea.
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Pierson B. Reading
Pierson Barton Reading (November 26, 1816 – May 29, 1868) (also referred to as Pearson, and as Parson) was a California pioneer.
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Pinus lambertiana
Pinus lambertiana (commonly known as the sugar pine or sugar cone pine) is the tallest and most massive pine tree, and has the longest cones of any conifer.
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Pinus ponderosa
Pinus ponderosa, commonly known as the ponderosa pine, bull pine, blackjack pine, or western yellow-pine, is a very large pine tree species of variable habitat native to the western United States and Canada.
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Placer mining
Placer mining is the mining of stream bed (alluvial) deposits for minerals.
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Polychlorinated biphenyl
A polychlorinated biphenyl (PCB) is an organic chlorine compound with the formula C12H10−xClx.
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Population density
Population density (in agriculture: standing stock and standing crop) is a measurement of population per unit area or unit volume; it is a quantity of type number density.
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Portage
Portage or portaging is the practice of carrying water craft or cargo over land, either around an obstacle in a river, or between two bodies of water.
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Quartz
Quartz is a mineral composed of silicon and oxygen atoms in a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2.
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Quercus chrysolepis
Quercus chrysolepis, commonly termed canyon live oak, canyon oak, golden cup oak or maul oak, is a North American species of evergreen oak that is found in Mexico and in the western United States, notably in the California Coast Ranges.
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Quercus garryana
Quercus garryana, the Garry oak, Oregon white oak, Oregon oak, or Hu'dshnam, from the traditional Klamath language, is a tree species with a range stretching from southern California to southwestern British Columbia.
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Rafting
Rafting and white water rafting are recreational outdoor activities which use an inflatable raft to navigate a river or other body of water.
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Rainbow trout
The rainbow trout (Oncorhynchus mykiss) is a trout and species of salmonid native to cold-water tributaries of the Pacific Ocean in Asia and North America.
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Redwood Creek (Humboldt County)
Redwood Creek (Yurok: 'O'rekw 'We-Roy) is a river in Humboldt County, California.
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Ring-tailed cat
The ringtail (Bassariscus astutus) is a mammal of the raccoon family, native to arid regions of North America.
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Riparian zone
A riparian zone or riparian area is the interface between land and a river or stream.
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Sacramento River
The Sacramento River is the principal river of Northern California in the United States, and is the largest river in California.
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Sacramento Valley
The Sacramento Valley is the area of the Central Valley of the U.S. state of California that lies north of the Sacramento–San Joaquin River Delta and is drained by the Sacramento River.
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Salmon Mountains
The Salmon Mountains are a subrange of the Klamath Mountains in Siskiyou County, northwestern California.
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Salmon River (California)
The Salmon River is a U.S. Geological Survey.
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Salvage logging
Salvage logging is the practice of logging trees in forest areas that have been damaged by wildfire, flood, severe wind, disease, insect infestation, or other natural disturbance in order to recover economic value that would otherwise be lost.
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Salyer, California
Salyer is an unincorporated community in Trinity County, California.
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San Joaquin Valley
The San Joaquin Valley is the area of the Central Valley of the U.S. state of California that lies south of the Sacramento–San Joaquin River Delta and is drained by the San Joaquin River.
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Sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) mineral particles or rock fragments.
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Schist
Schist (pronounced) is a medium-grade metamorphic rock with medium to large, flat, sheet-like grains in a preferred orientation (nearby grains are roughly parallel).
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Scott Mountains (California)
The Scott Mountains are a subrange of the Klamath Mountains located in Siskiyou County, in northwestern California.
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Scott River
The Scott River is a U.S. Geological Survey.
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Secondary forest
A secondary forest (or second-growth forest) is a forest or woodland area which has re-grown after a timber harvest, until a long enough period has passed so that the effects of the disturbance are no longer evident.
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Sediment
Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice, and/or by the force of gravity acting on the particles.
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Selenium
Selenium is a chemical element with symbol Se and atomic number 34.
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Sequoioideae
Sequoioideae (redwoods) is a subfamily of coniferous trees within the family Cupressaceae.
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Serpentine subgroup
The serpentine subgroup (part of the kaolinite-serpentine group) are greenish, brownish, or spotted minerals commonly found in serpentinite rocks.
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Shasta Dam
Shasta Dam (called Kennett Dam before its construction) is a concrete arch-gravity dam across the Sacramento River in Northern California in the United States.
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Shasta people
The Shastan peoples are a group of linguistically related indigenous from the Klamath Mountains.
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Shasta–Trinity National Forest
The Shasta–Trinity National Forest is a federally designated forest in northern California, USA.
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Sierra Club
The Sierra Club is an environmental organization in the United States.
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Sierra Nevada (U.S.)
The Sierra Nevada (snowy saw range) is a mountain range in the Western United States, between the Central Valley of California and the Great Basin.
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Smith River (California)
The Smith River (Tolowa: xaa-wvn’-taa-ghii~-li~’, nii~-li~’) is a river flowing from the Klamath Mountains to the Pacific Ocean in Del Norte County in extreme northwestern California, on the West Coast of the United States.
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Snowmelt
In hydrology, snowmelt is surface runoff produced from melting snow.
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South Fork Trinity River
The South Fork Trinity River is the main tributary of the Trinity River, in the northern part of the U.S. state of California.
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Southern Pacific Transportation Company
The Southern Pacific (or Espee from the railroad initials- SP) was an American Class I railroad network that existed from 1865 to 1998 that operated in the Western United States.
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Stamp mill
A stamp mill (or stamp battery or stamping mill) is a type of mill machine that crushes material by pounding rather than grinding, either for further processing or for extraction of metallic ores.
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Stream gauge
A stream gauge, streamgage or gauging station is a location used by hydrologists or environmental scientists to monitor and test terrestrial bodies of water.
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Stuart Fork Trinity River
The Stuart Fork Trinity River (also called Stewart's Fork) is a tributary of the Trinity River in the U.S. state of California.
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Sturgeon
Sturgeon is the common name for the 27 species of fish belonging to the family Acipenseridae.
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Sutter's Mill
Sutter's Mill was a sawmill, owned by 19th-century pioneer John Sutter, where gold was found, setting off the California Gold Rush, a major event of the history of the United States.
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Tailings
Tailings, also called mine dumps, culm dumps, slimes, tails, refuse, leach residue or slickens, terra-cone (terrikon), are the materials left over after the process of separating the valuable fraction from the uneconomic fraction (gangue) of an ore.
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Taoism
Taoism, also known as Daoism, is a religious or philosophical tradition of Chinese origin which emphasizes living in harmony with the Tao (also romanized as ''Dao'').
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Tarn (lake)
A tarn (or corrie loch) is a mountain lake or pool, formed in a cirque excavated by a glacier.
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Terrane
A terrane in geology, in full a tectonostratigraphic terrane, is a fragment of crustal material formed on, or broken off from, one tectonic plate and accreted or "sutured" to crust lying on another plate.
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The Wilderness Society (United States)
The Wilderness Society is an American non-profit land conservation organization that is dedicated to protecting natural areas and federal public lands in the United States.
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Trinidad, California
Trinidad Yurok: Chuerey is a seaside city in Humboldt County, located on the Pacific Ocean north of the Arcata-Eureka Airport and north of the college town of Arcata.
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Trinity Alps
The Trinity Alps are a mountain range in Siskiyou County and Trinity County, in Northern California.
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Trinity Alps Wilderness
The Trinity Alps Wilderness is a designated wilderness located in northern California, roughly between Eureka and Redding.
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Trinity County, California
Trinity County is a county in the northwestern part of the state of California.
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Trinity Dam
Trinity Dam is an earthfill dam on the Trinity River located about northeast of Weaverville, California in the United States.
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Trinity Lake
Trinity Lake, previously called Clair Engle Lake, is an artificial lake on the Trinity River formed by the Trinity Dam and located in Trinity County, California.
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Trinity Mountains
The Trinity Mountains are a subrange of the Klamath Mountains, located in Siskiyou County and eastern Trinity County, Northern California.
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United States
The United States of America (USA), commonly known as the United States (U.S.) or America, is a federal republic composed of 50 states, a federal district, five major self-governing territories, and various possessions.
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United States Bureau of Reclamation
The United States Bureau of Reclamation (USBR), and formerly the United States Reclamation Service (not to be confused with the Office of Surface Mining Reclamation and Enforcement), is a federal agency under the U.S. Department of the Interior, which oversees water resource management, specifically as it applies to the oversight and operation of the diversion, delivery, and storage projects that it has built throughout the western United States for irrigation, water supply, and attendant hydroelectric power generation.
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United States Forest Service
The United States Forest Service (USFS) is an agency of the U.S. Department of Agriculture that administers the nation's 154 national forests and 20 national grasslands, which encompass.
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United States Geological Survey
The United States Geological Survey (USGS, formerly simply Geological Survey) is a scientific agency of the United States government.
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Urban area
An urban area is a human settlement with high population density and infrastructure of built environment.
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Weaverville, California
Weaverville is a census designated place and the county seat of Trinity County, California in the United States.
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Weitchpec, California
Weitchpec (formerly, Durkee's Ferry and Weitchpec Bar) (Karuk: ansáfriik, Yurok: Wechpues, Wech) is an unincorporated community in Humboldt County, California, United States.
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Westlands Water District
Westlands Water District is a water district in central California, i.e. a local-government entity formed in 1952 that holds long-term contracts for water supplied by the Central Valley Project and the California State Water Project.
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Whiskeytown Lake
Whiskeytown Lake, is a reservoir in Shasta County in northwestern California, United States, about west of Redding.
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Whiskeytown, California
Whiskeytown is an unincorporated community in Shasta County, California, United States.
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Wildfire
A wildfire or wildland fire is a fire in an area of combustible vegetation that occurs in the countryside or rural area.
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Willow Creek, California
Willow Creek (formerly, China Flat) is a census-designated place (CDP) in Humboldt County, California, United States.
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Wintu
The Wintu (also Northern Wintun) are Native Americans who live in what is now Northern California.
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Wintuan languages
Wintuan (also Wintun, Wintoon, Copeh, Copehan) is a family of languages spoken in the Sacramento Valley of central Northern California.
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World War II
World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although conflicts reflecting the ideological clash between what would become the Allied and Axis blocs began earlier.
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Yana people
The Yana were a group of Native Americans indigenous to Northern California in the central Sierra Nevada, on the western side of the range.
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Yurok
The Yurok, whose name means "downriver people" in the neighboring Karuk language (also called yuh'ára, or yurúkvaarar in Karuk), are Native Americans who live in northwestern California near the Klamath River and Pacific coast.
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References
[1] https://en.wikipedia.org/wiki/Trinity_River_(California)
