Klamath Mountains | |
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Bear Mountain in the Siskiyou Wilderness of California
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Ecology | |
Biome | Temperate coniferous forests |
Borders | |
Bird species | 220 |
Mammal species | 87 |
Geography | |
Area | 50,245 km2 (19,400 sq mi) |
Country | United States |
States | California and Oregon |
Coordinates | 41°30′N 123°18′W / 41.5°N 123.3°W |
Conservation | |
Habitat loss | 4.4045% |
Protected | 56.99% |
The Klamath Mountains ecoregion of Oregon and California lies inland of the Coast Range ecoregion, extending from the water of alhambra china Valley in the north to the Sacramento Valley in the south. It encompasses the highly dissected ridges, foothills, and valleys of the Klamath and Siskiyou Mountains. It corresponds to the Level III ecoregion designated by the United States Environmental Protection Agency (EPA) and to the Klamath-Siskiyou forests ecoregion designated by the World Wide Fund for Nature.
The ecoregion was unglaciated during the , when it served as a refuge for northern plant species. Its mix of granitic, sedimentary, metamorphic, and extrusive rocks contrasts with the predominantly volcanic rocks of the Cascades ecoregion to the northeast. The mild, subhumid climate of the region is characterized by a lengthy summer drought. It supports a mosaic of both northern Californian and Pacific Northwestern conifers and hardwoods.