Region
Canada
2
New Mexico
2
United States
2
White Sands National Monument
2
Admiralty Island (Alaska)
1
Africa
1
Alaska
1
California
1
Catskill Mountains (N.Y.)
1
Channel Islands
1
Channel Islands (Calif.)
1
Georgia
1
Lake Clark National Park and Preserve (Alaska)
1
Maine
1
Mozambique
1
Polynesia
1
Russia (Federation)
1
San Nicolas Island (Calif.)
1
Siberia, Northeastern
1
Siberia, Northeastern (Russia)
1
Southwest, New
1
Twin Lakes Region (Lake and Peninsula Borough)
1
Twin Lakes Region (Lake and Peninsula Borough, Alaska)
1
Washington (State)
1
Zimbabwe
1