The State Library of Ohio has topographical maps from the United States Geological Survey for all 50 states including historical USGS maps for many counties in Ohio. The USGS Topographical Map website links to information about our collection of topographical maps. For information about the newest maps, which are produced digitally, visit The National Map. Click here to view the list of maps in our collection. If you are looking for maps of a specific state, simply add the state name into the search box (i.e. “USGS map Ohio”) and hit enter.