Region
Alaska
Seward Peninsula
Seward Peninsula (Alaska)
10
Arizona
2
Wyoming
2
Arkansas
1
Bering Land Bridge National Preserve
1
Bering Land Bridge National Preserve (Alaska)
1
Chukchi Sea
1
Delaware
1
Fremont County
1
Illinois
1
Kobuk Region
1
Maine
1
Maryland
1
Minnesota
1
Mississippi
1
Missouri
1
Natrona County
1
New Hampshire
1
New Mexico
1
Norton Bay-Nulato region
1
Pennsylvania
1
Serpentine-Kougarok region (Alaska)
1
Texas
1
Utah
1
Vermont
1
Virginia
1
Washington (D.C.)
1
Yukon-Tanana Upland
1