1942
C&GS
1:40k
1969
United States. Aeronautical Chart and Information Service.
1:2m
1915
1:80k
1883
C&GS
1:80k
1909
1:80k
1929
1:80k
1952
United States. Air Force
1:500k
1952
United States. Air Force
1:500k
1895
United States. War Department
1:634k
1951
Rand McNally Company