Parts Of South'n Colorado & North'n New Mexico, Atlas Sheet No. 69(B). Issued Jan'y 8th 1878. Weyss, Lang & Herman Del. Expeditions of 1874-75 & 77, Under the Command of 1st. Lieut. Geo. M. Wheeler, Corps of Engineers, U.S. Army. Executive Officers & Field Astronomers: Geo. M. Wheeler, Wm. L. Marshall, C.W. Whipple, C.C. Morrison. Topographical Assistants: L. Nell, G. Thompson, F.A. Clark, W.A. Cowles, A. Karl, J.C. Spiller, F.O. Maxson. U.S. Geographical Surveys West Of The 100th Meridian.
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Parts Of South'n Colorado & North'n New Mexico, Atlas Sheet No. 69(B). Issued Jan'y 8th 1878. Weyss, Lang & Herman Del. Expeditions of 1874-75 & 77, Under the Command of 1st. Lieut. Geo. M. Wheeler, Corps of Engineers, U.S. Army. Executive Officers & Field Astronomers: Geo. M. Wheeler, Wm. L. Marshall, C.W. Whipple, C.C. Morrison. Topographical Assistants: L. Nell, G. Thompson, F.A. Clark, W.A. Cowles, A. Karl, J.C. Spiller, F.O. Maxson. U.S. Geographical Surveys West Of The 100th Meridian.
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