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MERIDIAN 
PARTS OF SOUTHERN COLORADO AND NORTHERN NEW MEXICO-ATLAS SHEET No. 70(A) 
105° 
EXPEDITIONS of 1878 and 1879 Under the Command, of 
Scale 1 Inch to 4 miles or 1 : 2 53 440. 
10 15 
1st. Lieut. Geo. M. Wlreeler, Corps of Engineers U. S.Army 
Prof. John J. Stevenson, Geological Assistant. 
CRETACEOUS 
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BY ORDER OF THE HONORABLE THE SECRETARY OR WAR UNDER THE DIRECTION OF BRIG. GEN. it. G. WRIGHT, CHIEF OF ENGINEERS U. S. ARMY 
