The website of the Ohio Department of Transportation at DOT.State.OH.us provides detailed maps of Ohio. Road maps of Ohio are available from MapOofWorld.com and MapWatch.com, and topography, reference and infrastructure maps are available on Ohio-Map.org.
Maps from the Department of Transportation are available online and in hard copies available by order. The selection of maps includes coverage of the rail system, state and interstate highway system, county borders, and district boundaries. Within the county map, the DOT provides detailed maps of each. The state also provides maps of large Ohio cities, including Akron, Cincinnati, Cleveland and Columbus. Older versions of these maps are available in the archives.