Region
United States
28
New York (State)
11
New Mexico
9
Connecticut
7
California
5
Louisiana
4
Massachusetts
4
Ohio
4
Tennessee
4
Texas
4
Washington (D.C.)
4
Arizona
3
Catskill
3
Last Green Valley National Heritage Corridor (Conn. and Mass.)
3
Maryland
3
Minuteman Missile National Historic Site (S.D.)
3
Mississippi
3
Missouri
3
New Jersey
3
Pecos National Historical Park (N.M.)
3
South Dakota
3
Thomas Cole National Historic Site (Catskill, N.Y.)
3
West Virginia
3
Alaska
2
Arkansas
2
Auburn
2
Cane River National Heritage Area (La.)
2
Carter G. Woodson Home National Historic Site (Washington, D.C.)
2
Colonel James Barrett Farm (Concord, Mass.)
2
Coltsville (Hartford, Conn.)
2
Concord
2
Corinth
2
Delaware
2
Georgia
2
Hartford
2
Hawaii
2
Michigan
2
New Hampshire
2
North Dakota
2
Pennsylvania
2
San Antonio
2
San Antonio Missions National Historical Park (San Antonio, Tex.)
2
Utah
2
Virginia
2
Weir Farm National Historical Park (Conn.)
2
Ala Kahakai National Historic Trail (Hawaii)
1
Aleutian Islands
1
Allegheny Portage Railroad National Historic Site (Pa.)
1
Angel Island
1
Arabia Mountain National Heritage Area (Ga.)
1
more ...