Region
Idaho
8
Idaho National Laboratory Region
6
Colorado
2
Hagerman Region
2
New Jersey
2
Pennsylvania
2
Snake River Plain (Idaho and Or.)
2
Tennessee
2
Alaska
1
Canon City
1
Chickies Quartzite
1
Florida
1
Hylas Region
1
Illinois
1
Jefferson County
1
Middlesex County
1
Nevada
1
Newark Basin
1
Nye County
1
Pawcatuck River Watershed (R.I. and Conn.)
1
Rhode Island
1
Sarasota County
1
Snake River Watershed (Wyo.-Wash.)
1
Twin Falls Region
1
United States
1
Virginia
1
Washington (State)
1
White Oak Creek
1
White Oak Creek (Tenn.)
1
Wisconsin
1
Wood River Junction Region
1