of the Miami-Erie Canal Current photos of the Miami-Erie canal from Ohio Byways Piqua Historical Area includes a stretch of canal and a functional replica canal boat Map - Miami and Erie Canal through Cincinnati Plat maps of canal by county - ODNR Secured log-in, register required. Ohio Canals Map Canals in Ohio Warren County, Ohio Butler County, Ohio Transportation buildings and structures in Cincinnati Montgomery County, Ohio Transportation in Auglaize County, Ohio Shelby County, Ohio Canals opened in 1845