Region
Alaska
Seward Peninsula
24
Brooks Range
17
United States
17
Alaska Range
14
Anchorage Region
13
Matanuska River Valley
13
National Petroleum Reserve (Alaska)
13
Aleutian Islands
12
Kenai Peninsula
11
Prince of Wales Island
11
Alaska Peninsula
10
North Slope
9
Baranof Island
8
Cook Inlet
8
Cook Inlet Region
8
Montana
8
National Petroleum Reserve
8
Yukon
8
Fairbanks Region
7
North Slope (Alaska)
7
Pennsylvania
7
Wrangell Mountains
7
Anchorage
6
Chichagof Island
6
Texas
6
Colorado
5
Glacier Bay
5
Kodiak Island
5
Arizona
4
California
4
Gravina Island (Ketchikan Gateway Borough)
4
Idaho
4
Illinois
4
Kootznahoo Formation (Alaska)
4
Kuskokwim River Valley
4
Nevada
4
North America
4
Prince William Sound Region
4
Utah
4
Valdez Region
4
Wyoming
4
Admiralty Island
3
Alaska, Gulf of
3
Alaska, Southeast
3
Alexander Archipelago
3
Amchitka Island
3
Arctic National Wildlife Refuge
3
Bering River
3
Brooks Range (Alaska)
3
more ...