Index | Search | Home

Level III Ecoregions of Washington

Revised April 2000
National Health and Environmental Effects Research Laboratory
U.S. Environmental Protection Agency

level III ecoregions of Washington region 1   1. Coast Range
region 2   2. Puget Lowland
region 3   3. Willamette Valley
region 4   4. Cascades
region 9   9. Eastern Cascades Slopes and Foothills
region 10   10. Columbia Plateau
region 11   11. Blue Mountains
region 15   15. Northern Rockies
region 77   77. North Cascades