18 miles to to an inch. Includes legend. At head of title: (No. 1). "Surveyor General's Office, Dubuque, October 13th, 1857, Warner Lewis, Surr. Genl." Sen. Ex. Doc. No. 11 and House Ex. Doc. No. 2, 1st Sess., 35th Cong. 51 x 60 centimeters Scale approximately 1:1,140,480. 18 miles to to an inch General Map Collection
Creator:
C.B. Graham's Lith., Lewis, Warner, 1805-1888, and United States. Surveyor General
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