61B. Economical Features Of Central Colorado.

Economical Features Of Central Colorado, [Atlas Sheet No. 61(B)]. Issued Mar. 3d 1876. Weyss, Herman & Lang, Del. Expeditions of 1873, 1874 & 1875 Under the Command of 1st. Lieut. Geo. M. Wheeler, Corps of Engineers, U.S. Army. U.S. Geographical Surveys West Of The 100th Meridian.

Wheeler, G.M.

1876

1876

U.S.

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