The Klamath Mountains are a rugged and lightly populated mountain range in northwestern

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...

and southwestern

Oregon Oregon () is a U.S. state, state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington (state), Washington, while the Snake River delineates much of it ...

in the

western United States The Western United States (also called the American West, the Far West, and the West) is the region comprising the westernmost states of the United States. As American settlement in the U.S. expanded westward, the meaning of the term ''the We ...

. As a mountain system within both the greater Pacific Coast Ranges and the

California Coast Ranges The Coast Ranges of California span from Del Norte or Humboldt County, California, south to Santa Barbara County. The other three coastal California mountain ranges are the Transverse Ranges, Peninsular Ranges and the Klamath Mountains. ...

, the Klamath Mountains have a varied geology, with substantial areas of

serpentinite Serpentinite is a rock composed predominantly of one or more serpentine group minerals, the name originating from the similarity of the texture of the rock to that of the skin of a snake. Serpentinite has been called ''serpentine'' or ''s ...

and

marble Marble is a metamorphic rock composed of recrystallized carbonate minerals, most commonly calcite or dolomite. Marble is typically not foliated (layered), although there are exceptions. In geology, the term ''marble'' refers to metamorphose ...

, and a climate characterized by moderately cold winters with very heavy snowfall and warm, very dry summers with limited rainfall, especially in the south. As a consequence of the geology and soil types, the mountains harbor several

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found else ...

or near-endemic trees, forming one of the largest collections of

conifer Conifers are a group of cone-bearing seed plants, a subset of gymnosperms. Scientifically, they make up the division Pinophyta (), also known as Coniferophyta () or Coniferae. The division contains a single extant class, Pinopsida. All ext ...

s in the world. The mountains are also home to a diverse array of fish and animal species, including black bears, large cats, owls, eagles, and several species of Pacific salmon. Millions of acres in the mountains are managed by the

United States Forest Service The United States Forest Service (USFS) is an agency of the United States Department of Agriculture, U.S. Department of Agriculture that administers the nation's 154 United States National Forest, national forests and 20 United States Nationa ...

. The northernmost and largest sub-range of the Klamath Mountains are the

Siskiyou Mountains The Siskiyou Mountains are a coastal subrange of the Klamath Mountains, and located in northwestern California and southwestern Oregon in the United States. They extend in an arc for approximately from east of Crescent City, California, nort ...

Geography

Physiographically, the Klamath Mountains include the

, the Marble Mountains, the Scott Mountains, the Trinity Mountains, the Trinity Alps, the Salmon Mountains, and the northern Yolla-Bolly Mountains.Sawyer (2006), p. 104 They are a section of the larger

Pacific Border province The Pacific Border province is a physiographic province of the Physiographic regions of the world physical geography system. Description The Pacific Border province encompasses most of the North American Pacific Coast, with the southern end at ...

, which in turn is part of the Pacific Mountain System (Pacific Coast Ranges) physiographic division.

Ten highest peaks

These are the ten highest points in the Klamath Mountains: * 1.

Mount Eddy Mount Eddy is the highest peak of the Trinity Mountains, a mountain range of the Klamath Mountains System, located in Siskiyou County, and Trinity County in northern California. The mountain is in the Mount Eddy RNA, a Research Natural Area ...

( Trinity County and

Siskiyou County, California Siskiyou County (, ) is a county in the northernmost part of the U.S. state of California. As of the 2020 census, the population was 44,076. Its county seat is Yreka and its highest point is Mount Shasta. It falls within the Cascadia bioregio ...

; ) * 2. Thompson Peak (Trinity and Siskiyou County, California; ) * 3. Mount Hilton (Trinity and Siskiyou County, California; ) * 4. Caesar Peak (Trinity and Siskiyou County, California; ) * 5. Sawtooth Mountain (Trinity County, California; ) * 6. Wedding Cake Mountain (Trinity County, California; ) * 7. Caribou Mountain (Siskiyou County, California; ) * 8. China Mountain (Siskiyou County, California; ) * 9. Gibson Peak (Trinity County, California; ) * 10. Boulder Peak (Siskiyou County, California; )

Protected areas

A large portion of the Klamath Mountains is managed by the

. Several national forests lie in the Klamath Mountains region, including the Shasta-Trinity National Forest, Siskiyou National Forest, Klamath National Forest, Six Rivers National Forest, and Mendocino National Forest. The Klamath Mountains contain 11

wilderness areas Wilderness or wildlands (usually in the plural), are natural environments on Earth that have not been significantly modified by human activity or any nonurbanized land not under extensive agricultural cultivation. The term has traditionally re ...

in both Oregon and California: * Chanchelulla Wilderness * Kalmiopsis Wilderness * Marble Mountain Wilderness *

Mount Lassic Wilderness Mount is often used as part of the name of specific mountains, e.g. Mount Everest. Mount or Mounts may also refer to: Places * Mount, Cornwall, a village in Warleggan parish, England * Mount, Perranzabuloe, a hamlet in Perranzabuloe parish, ...

North Fork Wilderness North is one of the four compass points or cardinal directions. It is the opposite of south and is perpendicular to east and west. ''North'' is a noun, adjective, or adverb indicating direction or geography. Etymology The word ''north' ...

Red Buttes Wilderness The Red Buttes Wilderness is a wilderness area in the Klamath and Rogue River national forests in the U.S. states of Oregon and California. It comprises , approximately of which is located in California, and in Oregon.Russian Wilderness The Russian Wilderness is a wilderness area of located approximately northeast of Eureka in northern California. It is within the Klamath National Forest in Siskiyou County and is managed by the US Forest Service. It was added to the Nationa ...

Siskiyou Wilderness The Siskiyou Wilderness is a federal wilderness area designated by the passage of the California Wilderness Act of 1984. Originally, the land area was The Northern California Wild Heritage Act of 2006 added for the current total of . All of th ...

Soda Mountain Wilderness The Soda Mountain Wilderness is a protected wilderness area inside the Cascade–Siskiyou National Monument located in the U.S. state of Oregon adjacent to the California state border. The wilderness area was created by the Omnibus Public Land ...

* Trinity Alps Wilderness *

Yolla Bolly-Middle Eel Wilderness Yolla may refer to: * Yolla gas field, Bass Strait, Australia * Yolla, Tasmania, Australia ** Yolla District High School ** Yolla Football Club * Yolla, Tasmanian Aboriginal word for short-tailed shearwater * Yolla Bolly-Middle Eel Wilderness, ...

Recreation

There are extensive hiking trail systems, recreation areas, and campgrounds both primitive and developed in the Klamaths. A stretch of the

Pacific Crest Trail The Pacific Crest Trail (PCT), officially designated as the Pacific Crest National Scenic Trail, is a long-distance hiking and equestrian trail closely aligned with the highest portion of the Cascade and Sierra Nevada mountain ranges, which lie ...

(PCT) passes through these mountains as well. This section of the PCT is known locally as "The Big Bend" and is the transition from the

California Floristic Province The California Floristic Province (CFP) is a floristic province with a Mediterranean-type climate located on the Pacific Coast of North America with a distinctive flora similar to other regions with a winter rainfall and summer drought climate ...

to the Cascades. The

Bigfoot Trail The Bigfoot Trail is an unofficial U.S. long-distance hiking trail in northern California. The Bigfoot Trail was originally proposed by Michael Kauffmann in 2009 as a suggested route to navigate the Klamath Mountains from south to north as well ...

is a trail through the Klamath Mountains from the

to Crescent City, California.

Geology

'' Klamath Mountains'' is the name given to one of California's eleven geomorphic provinces. The rocks of the Klamath Mountains originated as

island arc Island arcs are long chains of active volcanoes with intense seismic activity found along convergent tectonic plate boundaries. Most island arcs originate on oceanic crust and have resulted from the descent of the lithosphere into the mantle alon ...

s and continental fragments in the

Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the conti ...

. The island masses consisted of

rift In geology, a rift is a linear zone where the lithosphere is being pulled apart and is an example of extensional tectonics. Typical rift features are a central linear downfaulted depression, called a graben, or more commonly a half-grabe ...

ed fragments of pre-existing continents and

volcanic A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plat ...

island masses created over

subduction zone Subduction is a geological process in which the oceanic lithosphere is recycled into the Earth's mantle at convergent boundaries. Where the oceanic lithosphere of a tectonic plate converges with the less dense lithosphere of a second plate, the ...

s. These island masses contain rocks as old as 500 million years, dating to the early

Paleozoic The Paleozoic (or Palaeozoic) Era is the earliest of three geologic eras of the Phanerozoic Eon. The name ''Paleozoic'' ( ;) was coined by the British geologist Adam Sedgwick in 1838 by combining the Greek words ''palaiós'' (, "old") and ...

Era.Bishop, pp. 29–31 A succession of eight island

terrane In geology, a terrane (; in full, a tectonostratigraphic terrane) is a crust fragment formed on a tectonic plate (or broken off from it) and accreted or " sutured" to crust lying on another plate. The crustal block or fragment preserves its ow ...

s moved eastward on the ancient Farallon plate and collided with the

North American plate The North American Plate is a tectonic plate covering most of North America, Cuba, the Bahamas, extreme northeastern Asia, and parts of Iceland and the Azores. With an area of , it is the Earth's second largest tectonic plate, behind the Paci ...

between 260 and about 130 million years ago. Each

accretion Accretion may refer to: Science * Accretion (astrophysics), the formation of planets and other bodies by collection of material through gravity * Accretion (meteorology), the process by which water vapor in clouds forms water droplets around nucl ...

left a terrane of rock of a single age. During the accretion, subduction of the plate metamorphosed the overlying rock and produced

magma Magma () is the molten or semi-molten natural material from which all igneous rocks are formed. Magma is found beneath the surface of the Earth, and evidence of magmatism has also been discovered on other terrestrial planets and some natura ...

which intruded the overlying rock as

pluton In geology, an igneous intrusion (or intrusive body or simply intrusion) is a body of intrusive igneous rock that forms by crystallization of magma slowly cooling below the surface of the Earth. Intrusions have a wide variety of forms and com ...

Serpentinite Serpentinite is a rock composed predominantly of one or more serpentine group minerals, the name originating from the similarity of the texture of the rock to that of the skin of a snake. Serpentinite has been called ''serpentine'' or ''s ...

, produced by the metamorphism of

basalt Basalt (; ) is an aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the surface of a rocky planet or moon. More than 90 ...

ic oceanic rocks, and intrusive rocks of

gabbro Gabbro () is a phaneritic (coarse-grained), mafic intrusive igneous rock formed from the slow cooling of magnesium-rich and iron-rich magma into a holocrystalline mass deep beneath the Earth's surface. Slow-cooling, coarse-grained gabbro is ...

ic to

granodiorite Granodiorite () is a coarse-grained ( phaneritic) intrusive igneous rock similar to granite, but containing more plagioclase feldspar than orthoclase feldspar. The term banatite is sometimes used informally for various rocks ranging from gr ...

composition are common rocks within the Klamath terranes. Subsequent lava flows from active volcanoes in the

Cascade Range The Cascade Range or Cascades is a major mountain range of western North America, extending from southern British Columbia through Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as the North Cascades, ...

and the erosion of the

Oregon Coast Range The Oregon Coast Range, often called simply the Coast Range and sometimes the Pacific Coast Range, is a mountain range, in the Pacific Coast Ranges physiographic region, in the U.S. state of Oregon along the Pacific Ocean. This north-south ru ...

to the north partially covered these rocks with

and sediments.

Ecology

Flora

As a consequence of the geology, the mountains harbor rich biodiversity, with several distinct plant communities, including temperate rain forests, moist inland forests, oak forests and savannas, high elevation forests, and alpine grasslands. These communities form the Klamath Mountains ecoregion. One of the principal plant communities in the Klamath Mountains is Mediterranean California Lower Montane Black Oak-Conifer Forest. The ecoregion includes several

or near-endemic species, such as

Port Orford cedar ''Chamaecyparis lawsoniana'', known as Port Orford cedar or Lawson cypress, is a species of conifer in the genus '' Chamaecyparis'', family Cupressaceae. It is native to Oregon and northwestern California, and grows from sea level up to in the ...

or Lawson's cypress (''Chamaecyparis lawsoniana''),

foxtail pine ''Pinus balfouriana'', the foxtail pine, is a rare high-elevation pine that is endemic to California, United States. It is closely related to the Great Basin and Rocky Mountain bristlecone pines, in the subsection ''Balfourianae''. Descriptio ...

(''Pinus balfouriana'' spp. ''balfouriana''), and Brewer's spruce (''Picea breweriana''), forming one of the largest collections of different conifers in the world. The flowering plant ''

Kalmiopsis leachiana ''Kalmiopsis leachiana'', commonly referred to as kalmiopsis, is a rare flowering plant endemic to the Siskiyou Mountains of southwest Oregon, where it is specially protected in the Kalmiopsis Wilderness reserve. It was discovered in 1930 by L ...

'', also endemic to the Klamaths, is limited to the Siskiyou sub-range in Oregon.Sawyer (2004), pp. 128–135 ;Conifers A large concentration of diverse coniferous species of trees exists in these mountains. Thirty conifer species (or more, depending on where one delineates the region) inhabit the area, including two endemic species, the Brewer's spruce and the Port Orford cedar, making the Klamath Mountains one of the richest coniferous forest regions of the world in terms of concentrated species diversity. The region also has several

edaphic Edaphology (from Greek , ''edaphos'', "ground",, '' -logia'') is concerned with the influence of soils on living beings, particularly plants. It is one of two main divisions of soil science, the other being pedology. Edaphology includes the stu ...

plant communities, adapted to specific soil types, notably serpentine outcrops.Axelrod, p. 51 Russian Peak

In 1969, Drs. John O. Sawyer and Dale Thornburgh discovered 17 species of conifers in around Little Duck Lake and Sugar Creek in the

Russian Wilderness The Russian Wilderness is a wilderness area of located approximately northeast of Eureka in northern California. It is within the Klamath National Forest in Siskiyou County and is managed by the US Forest Service. It was added to the Nationa ...

. They called this diverse area the Miracle Mile. In 2013 Richard Moore identified an 18th species,

western juniper ''Juniperus occidentalis'', known as the western juniper, is a shrub or tree native to the Western United States, growing in mountains at altitudes of and rarely down to . It is listed as Least Concern on the IUCN Red List because it is a wides ...

, in the Sugar Creek canyon. This is now considered the richest assemblage of conifers per unit area in any temperate region on Earth. Conifer species in the Klamath Mountains include coast Douglas-fir (''Pseudotsuga menziesii'' ssp. ''menziesii''),

ponderosa pine ''Pinus ponderosa'', commonly known as the ponderosa pine, bull pine, blackjack pine, western yellow-pine, or filipinus pine is a very large pine tree species of variable habitat native to mountainous regions of western North America. It is the ...

(''Pinus ponderosa''),

sugar pine ''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. The species name ''lambertiana'' was given by the Scottish botanist David Douglas, ...

(''Pinus lambertiana''), mountain hemlock (''Tsuga mertensiana''), white fir (''Abies concolor'' var. ''lowiana''), red fir (''A. magnifica'' var. ''shastensis''),

Brewer spruce ''Picea breweriana'', known as Brewer spruce, Brewer's weeping spruce, or weeping spruce, is a species of spruce native to western North America, where it is one of the rarest on the continent. The specific epithet ''breweriana'' is in honor of ...

, coast redwood (''Sequoia sempervirens''),

western red cedar ''Thuja plicata'' is an evergreen coniferous tree in the cypress family Cupressaceae, native to western North America. Its common name is western redcedar (western red cedar in the UK), and it is also called Pacific redcedar, giant arborvitae ...

(''Thuja Plicata''), and

Pacific yew ''Taxus brevifolia'', the Pacific yew or western yew, is a species of tree in the yew family Taxaceae native to the Pacific Northwest of North America. It is a small evergreen conifer, thriving in moisture and otherwise tending to take the form ...

(''Taxus brevifolia''). ;Trinity Alps flora Typical species of the Trinity Alps region include

Douglas fir The Douglas fir (''Pseudotsuga menziesii'') is an evergreen conifer species in the pine family, Pinaceae. It is native to western North America and is also known as Douglas-fir, Douglas spruce, Oregon pine, and Columbian pine. There are three v ...

, ponderosa pine, red fir, white fir, black oak,

canyon live oak ''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. This ...

Pacific madrone ''Arbutus menziesii'' or Pacific madrone (commonly madrone or madrona in the United States and arbutus in Canada), is a species of broadleaf evergreen tree in the family Ericaceae, native to the western coastal areas of North America, from Br ...

, bigleaf maple, California Buckeye, incense cedar, and

Jeffrey pine ''Pinus jeffreyi'', also known as Jeffrey pine, Jeffrey's pine, yellow pine and black pine, is a North American pine tree. It is mainly found in California, but also in the westernmost part of Nevada, southwestern Oregon, and northern Baja Califo ...

. California's northernmost stand of gray pine (''Pinus sabiniana'') is found here along the South Fork of the Salmon River.

Fauna

The vast forested wildlands, coupled with a low rate of human settlement in the rugged remote terrain, makes for excellent habitat for a number of species. Mammal species include

mountain lions The cougar (''Puma concolor'') is a large cat native to the Americas. Its range spans from the Canadian Yukon to the southern Andes in South America and is the most widespread of any large wild terrestrial mammal in the Western Hemisphere. I ...

, black bears,

bobcats The bobcat (''Lynx rufus''), also known as the red lynx, is a medium-sized cat native to North America. It ranges from southern Canada through most of the contiguous United States to Oaxaca in Mexico. It is listed as Least Concern on the I ...

lynx A lynx is a type of wild cat. Lynx may also refer to: Astronomy * Lynx (constellation) * Lynx (Chinese astronomy) * Lynx X-ray Observatory, a NASA-funded mission concept for a next-generation X-ray space observatory Places Canada * Lynx, ...

raccoon The raccoon ( or , ''Procyon lotor''), sometimes called the common raccoon to distinguish it from other species, is a mammal native to North America. It is the largest of the procyonid family, having a body length of , and a body weight of ...

s, martens, fishers, beavers, grey fox,

red fox The red fox (''Vulpes vulpes'') is the largest of the true foxes and one of the most widely distributed members of the Order (biology), order Carnivora, being present across the entire Northern Hemisphere including most of North America, Europe ...

, northern flying squirrel, and plentiful deer. Bird species include

golden eagles The golden eagle (''Aquila chrysaetos'') is a bird of prey living in the Northern Hemisphere. It is the most widely distributed species of eagle. Like all eagles, it belongs to the family Accipitridae. They are one of the best-known birds ...

bald eagles The bald eagle (''Haliaeetus leucocephalus'') is a bird of prey found in North America. A sea eagle, it has two known subspecies and forms a species pair with the white-tailed eagle (''Haliaeetus albicilla''), which occupies the same niche a ...

pileated woodpecker The pileated woodpecker (''Dryocopus pileatus'') is a large, mostly black woodpecker native to North America. An insectivore, it inhabits deciduous forests in eastern North America, the Great Lakes, the boreal forests of Canada, and parts of the ...

, band-tailed pigeon, several hawks including goshawks, several large owl species including the spotted owl, plus an extensive variety of additional species both plant and animal. The area used to be home to

grizzly bear The grizzly bear (''Ursus arctos horribilis''), also known as the North American brown bear or simply grizzly, is a population or subspecies of the brown bear inhabiting North America. In addition to the mainland grizzly (''Ursus arctos horri ...

s and

gray wolves The wolf (''Canis lupus''; : wolves), also known as the gray wolf or grey wolf, is a large canine native to Eurasia and North America. More than thirty subspecies of ''Canis lupus'' have been recognized, and gray wolves, as popularly u ...

. A project to reintroduce

Roosevelt elk The Roosevelt elk (''Cervus canadensis roosevelti)'', also known commonly as the Olympic elk and Roosevelt's wapiti, is the largest of the four surviving subspecies of elk (''Cervus canadensis'') in North America by body mass (although by antl ...

began in 1985 in the western Marble Mountains, near Elk Creek. Over the next 10 years the number and placement of reintroduced animals was expanded, and now elk can be seen roaming throughout the Marble Mountain Wilderness, in the northern Siskiyou Mountains, and along the South Fork of the Salmon River. Some of the most remote areas are prone to rumors of Bigfoot/ Sasquatch sightings from time to time, and the legendary creature plays a part in the folk tales of the Native American populations.

Rivers and fish

Major rivers and lakes in the Klamath Mountains include the

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. By average discharge, the Klamath is the second la ...

, Trinity River, Smith River, Salmon River, Rogue River,

Scott River The Scott River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed March 9, 2011 river in Siskiyou County, California, United States. It is a tributary of the Klamath River, one of the ...

, upper

Sacramento River The Sacramento River ( es, Río Sacramento) is the principal river of Northern California in the United States and is the largest river in California. Rising in the Klamath Mountains, the river flows south for before reaching the Sacramento� ...

and Castle Lake. The many mountains, streams and rivers form a major spawning ground for several species of trout and salmon; yet recently, in the last 50 years, some of the fish stocks have fallen drastically, particularly salmon stocks. The ecoregion's rivers and streams are home to nine species of native

salmonid Salmonidae is a family of ray-finned fish that constitutes the only currently extant family in the order Salmoniformes . It includes salmon (both Atlantic and Pacific species), trout (both ocean-going and landlocked), chars, freshwater whitefi ...

s. The depletions occur mainly because dams and clearcutting on the rugged slopes of the area contribute to large amounts of silt in the stream beds, which in turn interfere with spawning salmon, as they lay their eggs in exposed gravel beds. The notable fish species are

king King is the title given to a male monarch in a variety of contexts. The female equivalent is queen regnant, queen, which title is also given to the queen consort, consort of a king. *In the context of prehistory, antiquity and contempora ...

, kokanee, and silver salmon,

brown Brown is a color. It can be considered a composite color, but it is mainly a darker shade of orange. In the CMYK color model used in printing or painting, brown is usually made by combining the colors orange and black. In the RGB color model ...

brook A brook is a small river or natural stream of fresh water. It may also refer to: Computing *Brook, a programming language for GPU programming based on C *Brook+, an explicit data-parallel C compiler * BrookGPU, a framework for GPGPU programmin ...

, and

rainbow trout The rainbow trout (''Oncorhynchus mykiss'') is a species of trout native to cold-water tributaries of the Pacific Ocean in Asia and North America. The steelhead (sometimes called "steelhead trout") is an anadromous (sea-run) form of the coast ...

(including steelhead), and

crappie Crappies () are two species of North American freshwater fish of the genus ''Pomoxis'' in the family Centrarchidae (sunfishes). Both species of crappies are popular game fish among recreational anglers. Etymology The genus name ''Pomoxis' ...

bluegill The bluegill (''Lepomis macrochirus''), sometimes referred to as "bream", "brim", "sunny", or "copper nose" as is common in Texas, is a species of North American freshwater fish, native to and commonly found in streams, rivers, lakes, ponds an ...

catfish Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, ...

, and largemouth and smallmouth bass.

References

Works cited

* *Benke, Arthur C., ed., and Cushing, Colbert E., ed.; Stanford, Jack A.; Gregory, Stanley V.; Hauer, Richard F.; Snyder, Eric B. (2005). ''Rivers of North America''. Burlington, MA: Elsevier Academic Press. . . * * * * * * * * * *

External links

Rare and Endemic Conifers of Northwest California
- California Native Plant Society

- NOAA report {{Authority control Mountain ranges of Northern California Mountain ranges of Oregon Pacific Coast Ranges Mountain ranges of Siskiyou County, California Mountain ranges of Trinity County, California Mountain ranges of Del Norte County, California Mountain ranges of Humboldt County, California Mountain ranges of Jackson County, Oregon Landforms of Curry County, Oregon Landforms of Josephine County, Oregon North American Cordillera Physiographic sections