Region
United States
19
Massachusetts
17
Pennsylvania
17
Virginia
10
Maryland
8
New England
8
Connecticut
5
Maine
5
New Jersey
5
New York (State)
4
Rhode Island
4
Boston
3
Philadelphia
3
Boston (Mass.)
2
New Hampshire
2
Penn
2
Philadelphia (Pa.)
2
Albany
1
America
1
Branford (Conn. : Town)
1
Caerwys (Wales)
1
Calvert County
1
Cambridge
1
Canada
1
Carrollon
1
Connecticut River Valley
1
Darby
1
Deerfield (Mass.)
1
Delaware
1
Essex Co
1
Frederick Co
1
Georgia
1
Gloucester County
1
Guilford (Conn.)
1
Hackensack River Watershed (N.Y. and N.J.)
1
Henrico County
1
Ipswich
1
Livingston
1
Middlesex Co
1
Mullica River
1
New Brunswick
1
New Haven
1
New London
1
New London (Conn.)
1
New Netherland
1
Newfoundland
1
North Carolina
1
Pennsylvanie
1
Prince George County
1
Princeton
1
more ...