1979
US Geological Survey
1:24k
1965
1:24k
1965
1:24k
1965
1:24k
1911
Office of Engineer Corps
1:12k
1861
C&GS
1:16k
1892
Corps of Engineers
1:24k
1877
Mitchell, Samuel Augustus Jr.
1:28k
1868
Mitchell, Samuel Augustus Jr.
1:28k
1907
Norris Peters Co.
1:15k