Region
United States
1,382
Montana
793
Colorado
714
Wyoming
681
New Mexico
578
Utah
567
California
512
Oregon
485
Nevada
422
Idaho
401
Arizona
355
Alaska
273
Washington (State)
218
West (U.S.)
161
Texas
82
North Dakota
80
California Desert National Conservation Area (Calif.)
77
South Dakota
65
Columbia River Watershed
63
Mexico, Gulf of
51
Northwest, Pacific
50
San Juan County
37
Atlantic Coast (U.S.)
36
United States, West
35
Grand Staircase-Escalante National Monument (Utah)
34
Garfield County
30
San Juan Islands
29
San Juan Islands (Wash.)
29
Alabama
28
Custer County
28
Gulf Region
28
Lincoln County
26
North America
26
West United States
24
Caribou County
22
Elko County
22
Grand Staircase-Escalante National Monument
22
Pacific States
21
Powder River Basin (Wyo. and Mont.)
21
Rosebud County
21
Louisiana
20
National Petroleum Reserve
20
Gulf of Mexico
19
Mohave County
19
San Bernardino County
19
Southern States
19
Atlantic States
18
California Desert National Conservation Area
18
Carbon County
17
Colorado River Watershed (Colo.-Mexico)
17
more ...