Map of the rail road surveys between Hillsborough & Chillicothe. Executed in February, March & April 1851 under the direction of B. H. Latrobe, civil engineer,

Map of part of Ohio indicating the located and explored railroad lines along the Milford and Chillicothe Turnpike. Shows "Air Lines computed by C. D. Jaques Esqr. C. E. from Hillsborough to Chillicothe." [From published bibliography]