Region
United States
Northeastern States
12
California
9
Canada
6
West (U.S.)
6
Confederate States of America
4
Colorado
3
New York (State)
3
Utah
3
China
2
Golden Spike National Historical Park (Utah)
2
Harriet Tubman Underground Railroad National Historical Park (Md.)
2
Maryland
2
New York
2
Pennsylvania
2
Alamo (San Antonio, Tex.)
1
Baton Rouge
1
Camp Pendleton
1
Camp Pendleton (Calif.)
1
Dorchester County
1
Florida
1
Great Britain
1
Hualapai Indian Reservation (Ariz.)
1
Hualapai Indian Tribe of the Hualapai Indian Reservation, Arizona
1
Illinois
1
Louisiana
1
Maine
1
Mexico
1
Mississippi River
1
Mississippi River Valley
1
Missouri River
1
Missouri River Valley
1
Mount Rushmore National Memorial (S.D.)
1
Nebraska
1
New Orleans (La.)
1
New York (N.Y.)
1
New York Metropolitan Area
1
North Carolina
1
Ohio River
1
Oregon
1
Philadelphia
1
Point Reyes National Seashore (Calif.)
1
Ripley (Ohio)
1
Rocky Mountains
1
Rocky Mountains Region
1
Russia
1
Saratoga Springs (N.Y.)
1
Somerset Place (N.C.)
1
Syracuse
1
Texas
1
more ...