1959
1:63k
1982
1:24k
1952
United States. Air Force
1:500k
1895
United States. War Department
1:315k
1951
United States. Air Force
1:500k
1984
1:24k
1895
United States. War Department
1:634k
1897
Rand McNally and Company
1:980k
1879
Rand McNally and Company
1:2m
1879
U.S. General Land Office
1:887k