Region
United States
50
Foreign countries
7
Arizona
2
West (U.S.)
2
California
1
Coconino National Forest
1
Coconino National Forest (Ariz.)
1
Colorado
1
Great Plains
1
Nevada
1
New Mexico
1
Northeastern States
1
Northwest, Pacific
1
Oregon
1
Rocky Mountains
1
Southern States
1
Toiyabe National Forest (Nev. and Calif.)
1
Washington (D.C.)
1