Region
Colorado
358
United States
107
Alaska
16
Wyoming
13
Washington (State)
12
North America
11
Oregon
11
Arizona
9
California
9
Montana
8
Yellowstone National Park
8
North Carolina
7
Currituck National Wildlife Refuge
6
Idaho
6
Outer Banks
6
West (U.S.)
6
Nevada
5
South Dakota
5
Klamath National Forest (Calif. and Or.)
4
North Dakota
4
Africa
3
Central Idaho Wilderness
3
New Mexico
3
Olympic National Park
3
Southwestern States
3
Alabama
2
Arctic National Wildlife Refuge
2
Arctic National Wildlife Refuge (Alaska)
2
Asia
2
Columbia River Watershed
2
Developing countries
2
Florida
2
Grand Canyon National Park
2
Great Plains
2
Iowa
2
Kofa National Wildlife Refuge (Ariz.)
2
Middle Park
2
New England
2
New Water Mountains Wilderness (Ariz.)
2
Olympic Peninsula
2
Pacific States
2
Pomeroy Ranger District (Wash. and Or.)
2
Prescott National Forest
2
Southwest, New
2
Texas
2
Trinity River Watershed
2
Umatilla National Forest (Or. and Wash.)
2
Yukon Flats National Wildlife Refuge (Alaska)
2
Bear Lodge Mountains
1
Bighorn Basin (Mont. and Wyo.)
1
more ...