Post route map of the states of Michigan and Wisconsin: with adjacent parts of Ohio, Indiana, Illinois, Iowa, and Minnesota; designed and constructed under the orders of John A.J. Creswell and Giles A. Smith by W.L. Nicholson.
Prime meridian: Washington. Shows railroad lines. "Drawn by C.H. Poole. Engraved by D. McClelland." "The service on this diagram brought up to date of [April 1st, 1874]." Includes "General statistics," "Explanation of mail service," and table of distances. 1 map: hand color; 105 x 141 cm This map is in the public domain. Please attribute access and use of this digitized map to the Stephen S. Clark Library, University of Michigan Library.
Nicholson, W. L.,Poole, C. H.,McClelland, D.,United States. Post Office Department.