Big Ten Academic Alliance Geospatial Discovery Portal
Big Ten Academic Alliance Geoportal
New railroad map of Indiana, Ohio, and part of Illinois.
- Prime meridians: Greenwich, Washington.; Entered according to Act of Congress in the year 1875 by G.W. & C.B. Colton Co. in the Office of the Librarian of Congress, at Washington. Scale approximately 1:1,267,200. 20 statute miles to an inch.
- G.W. & C.B. Colton & Co.
- Indiana Historic Maps
- Indiana, United States, State of Ohio, Ohio, United States, and State of Illinois, Illinois, United States
- Thematic maps
- Contributed by:
- Visit Source