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Klamath Mountains (ecoregion)

Klamath Mountains
Bear Mountain and tarn below Devils Punchbowl in Siskiyou Wilderness.jpg
Bear Mountain in the Siskiyou Wilderness of California
Klamath-Siskiyou Forests map.svg
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 / 41.5; -123.3
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.


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