Region
United States
10
Alaska
7
California
7
Washington (State)
5
Hawaii
4
Afghanistan
3
Colorado
3
Florida
3
Nevada
3
Oregon
3
Taylor Mountains
3
Texas
3
Antarctica
2
Front Range (Colo. and Wyo.)
2
Kansas
2
Kilauea Volcano
2
Kilauea Volcano (Hawaii)
2
Long Island Sound (N.Y. and Conn.)
2
Massachusetts Bay (Mass.)
2
Nebraska
2
North America
2
Oklahoma
2
Yukon River Valley (Yukon and Alaska)
2
Alaska Peninsula
1
Alaska, Southeast
1
Aleutian Islands
1
Arabian Peninsula
1
Arizona
1
Atlantic Ocean
1
Berkeley County
1
Bristol Bay Borough
1
Cascade Range
1
Clarke County
1
Corpus Christi Bay
1
Creus, Cape
1
Dillingham Census Area
1
East (U.S.)
1
Ecuador
1
Fish Lake Watershed
1
Fort Lauderdale
1
Frederick County
1
Galapagos Islands
1
Hawaii Island
1
Hayward Fault (Calif.)
1
Iowa
1
Jefferson County
1
Lake and Peninsula Borough
1
Massachusetts
1
Massachusetts Bay
1
Mexico, Gulf of
1
more ...