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|Material Type:||Government publication, National government publication|
|All Authors / Contributors:||
George Horatio Derby; C H Poole
|Notes:||Relief shown by hachures.
"Copy reduced from the Original."
|Description:||1 map : black and white ; 39 x 32 cm.|
|Cartographic Mathematical Data:||Scale [ca. 1:21,000].|
|Series Title:||Senate Ex. Doc., 1st session, 33rd Congress, no. 1; Senate document (United States. Congress. Senate), 33rd Congress, 1st session, no. 1.|
|Responsibility:||by order of Col. J.J. Abert, Chief of U.S.T. Engrs. ; by George H. Derby ; assisted by C.H. Poole, C.E.|