Region
Maryland
7
United States
États-Unis
4
Pennsylvania
3
America
2
Delaware
2
Delaware River Valley
2
Delaware River Valley (N.Y.-Del. and N.J.)
2
New Jersey
2
New Sweden
2
Pennsylvanie
2
Sweden
2
Western Hemisphere
2
Bladensburg
1
Conococheague Creek Region (Pa.)
1
Delaware, Vallée de la (N.Y.-Del. et N.J.)
1
Europe
1
Great Britain
1
Potomac River
1
United States, Maryland
1
United States, Virginia
1
Virginia
1
Washington (D.C.)
1