1940
C&GS
1:40k
1850
Bache, A. D.
1:60k
1878
1:80k
1910
1894
DRAKE, Samuel Adams.
1951
United States. Air Force
1:500k
SHALER, Nathaniel Southgate.
1783
1861
1923
Department of the Interior U. S. Geological Survey
1:125k