Region
United States
268
Colorado
87
California
77
Alaska
62
Utah
50
Nevada
48
Arizona
37
Wyoming
23
New Mexico
22
North America
20
Washington (State)
20
West (U.S.)
18
Oregon
13
Texas
13
Hawaii
12
New York (State)
12
Lincoln County
11
Europe
10
Mohave County
10
Moon
10
Florida
9
Indiana
9
China
8
Louisiana
8
Maine
8
Montana
8
Oregon, Western
8
Africa
7
Garfield County
7
Idaho
7
Nebraska
7
Pacific Coast (Calif.)
7
Virginia
7
Washington County
7
America
6
Antarctica
6
Arctic regions
6
Great Britain
6
Iron County
6
Kansas
6
Missouri
6
New Hampshire
6
North Carolina
6
Northwest, Pacific
6
Nye County
6
Ohio
6
Pennsylvania
6
Russia
6
Saudi Arabia
6
Washington (D.C.)
6
more ...