Region
Idaho
Montana
178
Oregon
81
Wyoming
79
Idaho National Laboratory Region
78
Washington (State)
70
United States
66
Lemhi County
61
Utah
53
Nevada
44
Payette National Forest
44
Shoshone County
43
Caribou County
41
Owyhee County
35
Payette National Forest (Idaho)
35
Custer County
32
Boise National Forest (Idaho)
31
Snake River Plain (Idaho and Or.)
29
Boise National Forest
28
Valley County
28
Idaho County
26
Salmon National Forest
26
California
25
Salmon National Forest (Idaho)
25
Snake River (Wyo.-Wash.)
25
Snake River Plain Aquifer
24
Blaine County
23
Elmore County
23
Phosphoria Formation
22
Colorado
20
Craters of the Moon National Monument (Idaho)
20
Bonneville County
19
Bonner County
18
Challis National Forest
18
Challis National Forest (Idaho)
18
Teton Dam (Idaho)
18
Butte County
17
Cassia County
16
Nezperce National Forest
16
Nezperce National Forest (Idaho)
16
Sawtooth National Recreation Area (Idaho)
16
Bannock County
15
Boise River
15
Salmon River Watershed
15
Kootenai County
14
Snake River Watershed (Wyo.-Wash.)
14
Morley Nelson Snake River Birds of Prey National Conservation Area (Idaho)
13
Twin Falls County
13
West (U.S.)
13
Fort Hall Indian Reservation (Idaho)
12
more ...