No. 2 map of the Rock Island Rapids of the Mississippi River
Rock Island at left of map, Davensport Island rightmost labeled island.; Photocopy.; Relief shown by hachures.; "25th Cong., 2nd sess., Senate Doc. no. 139"--upper right within neat line.; "Courtesy of the Army Corps of Engineers, Rock Island Aresenal, 1/80"--lower right outside neat line.
25 x 85 centimeters
Scale approximately 1:800; 1 inch = 16 chains
General Map Collection
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