Region
United States
17
Utah
8
Colorado
6
Pennsylvania
6
Florida
3
Alaska
2
Idaho
2
New Jersey
2
New York (State)
2
Wisconsin
2
Wyoming
2
Alabama
1
Arizona
1
Beaver County
1
Cache Valley (Utah and Idaho)
1
California
1
Chester County
1
Connecticut
1
Delaware
1
Great Salt Lake Region
1
Hawaii
1
Hylas Region
1
Illinois
1
Illinois River Watershed
1
Iowa
1
Kansas
1
Kentucky
1
Louisiana
1
Maine
1
Maryland
1
Minnesota
1
Mississippi
1
Missouri
1
Montana
1
Nebraska
1
Nevada
1
New Hampshire
1
New Mexico
1
North Carolina
1
North Dakota
1
Oregon
1
Owl Creek Watershed (Hot Springs County)
1
Potomac River Watershed
1
Provo (Utah)
1
Rhode Island
1
Salt Lake County
1
Sandy (Utah)
1
Sevier County
1
Snake River Plain (Idaho and Or.)
1
South Carolina
1
more ...