Region
United States
9
Massachusetts
8
Pennsylvania
6
Bucks County
5
Ashland
4
Clark Fork Watershed (Mont. and Idaho)
2
Holley
2
New York (State)
2
Ashland Region
1
Connecticut
1
Davisville Region
1
Durham (Town)
1
Hawaii
1
Holbrook
1
Illinois
1
Joliet
1
Lansdale
1
Lemont
1
Maui
1
Minnesota
1
New England
1
New Hampshire
1
Newington
1
Oklahoma
1
Rhode Island
1
Sudbury River
1
Tewksbury Region
1