Ecoregion 9g: Klamath/Goose Lake Basins

The Klamath/Goose Lake Warm Wet Basins ecoregion (named for Upper Klamath and Goose lakes) is drier than elsewhere in the eastern Cascades, yet it contains floodplains, terraces, and a pluvial lake basin. Elevation varies from 4,000 to 5,400 feet (1,200 to 1,600 m). A variety of wildrye, bluegrass, and wheatgrass species once covered the basins, but most of the wet meadows and wetlands have been drained for rural residential development, pasture, and cropland, including alfalfa, potatoes, and small grains. Potential vegetation includes bluebunch wheatgrass, Idaho fescue, antelope bitterbrush, big sagebrush, and low sagebrush on the steppes, with tules, cattails, and sedges in the wetlands. Several marshland wildlife refuges within the Klamath Basin National Wildlife Refuges Complex are key to preserving regional biodiversity, particularly at-risk bird and fish species. The region covers 1,039 square miles (2,690 km2) in Klamath and Lake counties, Oregon. Contiguous areas in California have not been mapped yet.

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