Region
United States
6
Acadia National Park (Me.)
2
Colonel James Barrett Farm (Concord, Mass.)
2
Colorado
2
Concord
2
Cordell Bank National Marine Sanctuary (Calif.)
2
Massachusetts
2
America
1
Canada
1
Great Britain
1
Israel
1
Italy
1
Lebanon
1
Middle East
1
Slovenia
1
Syria
1
Washington (State)
1
West Virginia
1