"Entered according to act of Congress in the year 1871 by G.W. & C.B. Colton & Co. in the office of the Librarian of Congress at Washington." Also shows mines, military reserves, and Indian reserves. Includes inset of "Map of the northwestern portion of the United States." Prime meridians: Greenwich and Washington. Relief shown by hachures.
1 map : ‡b hand col. ; 69 x 99 cm.
Extent of Digitization
Scale [ca. 1:1,280,000] ‡c (W 118⁰--W 104⁰/N 49⁰--N 42⁰)
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