1946
1:25k
1926
1:63k
1963
1:250k
1984
1:250k
1951
United States. Air Force
1:500k
1910
C&GS
1:400k
1952
United States. Air Force
1:500k
1895
United States. War Department
1:634k
1897
Rand McNally and Company
1:980k
1879
Rand McNally and Company
1:2m