In top margin: Brig. Genl. A.A. Humphreys, Chief of Engineers, U.S.A. ; Brig. Gen'l A.H. Terry, comdg department. Includes notes indicating general topography. Relief shown by hachures and spot heights. Shows exploration routes and dates.
1 map ; 62 x 53 cm.
Extent of Digitization
Scale [1:760,320]. 1 in. = 12 miles
(W 105⁰--W 101⁰/N 47⁰--N 43⁰)., 760320, a, N0430000, N0470000, W1010000, and W1050000
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