Region
Oregon
Washington (State)
4
Portland Region
3
Yamhill County
3
Baker County
2
Clackamas County
2
Clark County
2
Columbia County
2
Coos County
2
Cowlitz County
2
Lincoln County
2
Marion County
2
Multnomah County
2
Antelope-Ashwood Region
1
Cascade Range
1
Douglas County
1
Granite Quadrangle
1
Greenhorn Quadrangle
1
Jackson County
1
Lane County
1
Linn County
1
Pacific Ocean
1
Polk County
1
Puget Sound Region
1
Tillamook County
1
Vancouver Region
1