Region
Wyoming
12
Wind River Basin
6
Fremont County
2
Bighorn Basin (Mont. and Wyo.)
1
Granite Mountains
1
Gros Ventre River Valley
1
Leidy Formation
1
Medicine Bow Mountains (Colo. and Wyo.)
1
Missouri River Watershed
1
Natrona County
1
Sierra Madre (Wyo. and Colo.)
1
Teton County
1
Teton Range (Wyo. and Idaho)
1
Utah
1
Wind River Formation (Wyo.)
1
Wisconsin
1
Yellowstone National Park
1