Columbia Plateau & Blue Mountains bioregion
- 15,481Total Land Area (1000 ha)
- 2Number of Ecoregions
- 27%Protection Target
- 3Protection Level
The Columbia Plateau, located in the American West subrealm of Northern America, is an intermontane bioregion contained by the Rockies to the east and the Cascades to the west. This bioregion consists largely of high-altitude prairie but incorporates the conifer forests that cover the range of the lower lying, volcanic mountains to the south. It contains two ecoregions – Palouse Prairie (398), Blue Mountains Forests (348) – and includes a large portion of the Snake River, which merges with the Columbia River in southern Washington. The total area of this bioregion is approximately 15.5 million hectares.
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