Geological railroad & township map of the state of Ohio
Entered according to act of Congress in the year 1851 by J.H. Colton in the clerk's office of the district court for the southern district of New York.; Map contains geological references and census of the state of Ohio.; Map shows parts of adjoining states.; Map shows longitude west from Greenwich and Washington.
56 x 63 centimeters
Scale approximately 1:1,550,000
General Map Collection
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