Region
Ohio River Valley
197
United States
41
Mississippi River Valley
20
Northwest, Old
15
Ohio
14
Ohio River
12
West Virginia
10
Kentucky
9
Middle Atlantic States
6
Ohio Valley
6
Pennsylvania
6
Cincinnati (Ohio)
4
Great Britain
4
Great Lakes Region (North America)
4
Mississippi River
4
Southern States
4
Edwards County (Ill.)
3
France
3
Green River Valley (Ky.)
3
Indiana
3
Southwest, Old
3
Tennessee River Valley
3
Atlantic States
2
Canada
2
Cave in Rock (Ill.)
2
Fort Henry
2
Fort Henry (W. Va.)
2
Marietta
2
Natchez Trace
2
Northwestern States
2
Pittsburgh
2
Sunwatch Site (Dayton, Ohio)
2
Virginia
2
West (U.S.)
2
Appalachian Mountains
1
Canadian Shield
1
Cincinnati
1
Corydon (Ind.)
1
Excavations (Archaeology)
1
Frankfort (Ky.)
1
Genesee River Region (Pa. and N.Y.)
1
Genesee River Valley (Pa. and N.Y.)
1
Genesee region (N.Y.)
1
Great Plains
1
Green River Valley
1
Illinois
1
Illinois river
1
Latin America
1
Louisiana
1
Louisville
1
more ...