Snake-Columbia shrub steppe

WWF Abstract

This is an arid ecoregion, even though it gets its name from two rivers, the Columbia and the Snake. The area is dry because it's in the rain shadow of the Cascade Range. The moist ocean air coming eastward from the Pacific Ocean has to rise to get over the mountains. As it rises, it cools, dropping the rain west of or on the Cascade Mountains. By the time the winds reach the Snake/Columbia Shrub Steppe, they are dry.
Read more: View WWF Report
Ecozone:Nearctic
Biome:Deserts and Xeric Shrublands
Countries:United States
Area:53,887,998 acres (21,807,699 hectares)
Species:All  Endangered  Invasive
Climate:View Climate Data
Land Use:View Land Use Data

Protected Areas

Craters of the Moon National Monument
Hagerman Fossil Beds National Monument
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 gis.wwfus.org/wildfinder