Geography
California
110 results
Alaska
52 results
United States
40 results
Colorado
37 results
Nevada
34 results
Montana
31 results
New Mexico
31 results
Powder River Basin (Wyo. and Mont.)
28 results
Texas
23 results
Arizona
22 results
San Bernardino County
19 results
Utah
18 results
North America
17 results
Kansas
14 results
Wyoming
14 results
Illinois
13 results
Oregon
13 results
Virginia
11 results
McKinley County
10 results
Pennsylvania
10 results
Hawaii
9 results
Idaho
9 results
Oklahoma
9 results
Australia
8 results
Front Range (Colo. and Wyo.)
8 results
North Slope
8 results
Earth (Planet)
7 results
Florida
7 results
Kentucky
7 results
Vermont
7 results
Alabama
6 results
Clear Creek County
6 results
Ireland
6 results
Italy
6 results
Japan
6 results
Maine
6 results
Mexico
6 results
Seward Peninsula
6 results
Sierra Nevada (Calif. and Nev.)
6 results
South Dakota
6 results
Washington (State)
6 results
Arkansas
5 results
Egypt
5 results
France
5 results
Georgia
5 results
Great Britain
5 results
Indiana
5 results
Inyo County
5 results
Michigan
5 results
Nye County
5 results
more…