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Columbia Plateau

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To check where a specific point lies, you can look it up in our Ecoregion Locator.

Map Legend & Subregion List

This list will help you navigate the regions in case you have problems with viewing or clicking the interactive map above.

NameColor on MapEPA Code*
Channeled Scablands10a
Loess Islands10b
Umatilla Plateau10c
Okanogan Drift Hills10d
Pleistocene Lake Basins10e
Dissected Loess Uplands10f
Yakima Folds10g
Palouse Hills10h
Deep Loess Foothills10i
Nez Perce Prairie10j
Deschutes/John Day Canyons10k
Lower Snake and Clearwater Canyons10l
Okanogan Valley10m
Umatilla Dissected Uplands10n

* This code refers to the US EPA's Level 4 ecoregion codes for the continental U.S., see here.