Region
United States
11
Florida
3
California
2
Colorado
2
Manatee County
2
Nevada
2
Sarasota County
2
Arkansas River Watershed
1
Canadian River Watershed (Okla.)
1
Chester County
1
Deep Fork River Watershed (Okla.)
1
Everglades National Park
1
Everglades National Park (Fla.)
1
Maryland
1
Monocacy National Battlefield
1
Monocacy National Battlefield (Md.)
1
North Canadian River Watershed (Okla.)
1
Northern Colorado Water Conservancy District
1
Oklahoma
1
Pennsylvania
1
Tamiami Trail (Fla.)
1
Utah
1
West (U.S.)
1
White Pine County
1