1995
1:24k
1982
1:25k
1988
Washburn, Bradford
1:20k
1864
Boardman, Harvey
1:100k
1988
1:100k
1986
1:100k
1938
National Geographic Society. Cartographic Division.
1:190k
1858
Boardman, Harvey
1:101k
1859
Boardman, Harvey
1937
National Geographic Society
1:190k