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Open-File Materials

Digital Base Map Files

Digital base map files are no longer available in DWG format from the Division of Geological Survey. Interested parties are referred to the ESRI/Statewide Digital Data available from the Ohio Department of Transportation.

Click here for more information from ODOT


Digital data for Map MG-2: Original Land Subdivisions of Ohio includes Ohio township boundaries and provides an important index of the state's original land subdivisions, which are useful as a geographic and historic reference and within many GIS applications.

Click here for more information on Map MG-2


 Last update November 5, 2012

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