Map showing the Grand Rapids & Indiana Railroad, and its connections. Advertising map covering Michigan and vicinity. Shows drainage, cities and towns, railroad land grant, and the railroad network emphasizing the main line. Information on bond sale by Winslow, Lanier & Co., N.Y., on the verso. Under construction by Continental Improvement Company, George W. Cass, President. G.W. & C.B. Colton & Co. CREATED/PUBLISHED New York, 1871. Scale ca. 1:4,000,000.