1878
Snyder, Van Vechten & Co.
1:105k
1901
Murray-Aaron, Eugene, 1852-1941.
1877
Mitchell, Samuel Augustus Jr.
1:25k
1874
Mitchell, Samuel Augustus Jr.
1962
Geological Survey (U.S.)
1:24k
1940
U.S. Dept. of Agriculture Bureau of Soils
1:63k
1912
C.N. Caspar Co
1:20k
1958
1:24k
1958
1:24k
1958
1:24k