Oregon Biomes Map

Our Oregon biomes map shows wet coastal forests, dry interior basins, and forests/shrubland. It’s one state that has very different environments. The Cascade Range acts as a clear dividing line.

Map Information

State of Oregon
Oregon Biomes Map
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On the Map

Our table below displays the biome area and percent for Oregon.

Biome	Area (Square Miles)	Percent
Deserts & Xeric Shrublands	23843	24.6
Temperate Conifer Forests	60923	62.9
Temperate Grasslands, Savannas & Shrublands	12164	12.5

Our table below displays the ecoregion area and percent for Oregon.

Ecoregion	Area (Square Miles)	Percent
Blue Mountains forests	23916	24.7
Central Pacific Northwest coastal forests	8989	9.3
Central-Southern Cascades Forests	11215	11.6
Eastern Cascades forests	10585	10.9
Great Basin montane forests	103	0.1
Klamath-Siskiyou forests	6015	6.2
Northern California coastal forests	99	0.1
Palouse prairie	6830	7.0
Puget lowland forests	1	0.0
Snake-Columbia shrub steppe	23843	24.6
Willamette Valley oak savanna	5334	5.5