1918
1:20k
1917
Corps of Engineers
1:20k
1953
1:24k
1918
1:20k
1950
United States. Air Force
1:500k
1950
United States. Air Force
1:500k
1951
United States. Air Force
1:500k
1952
United States. Air Force
1:500k
1951
United States. Air Force
1:500k
1982
1:24k