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As part of the project to digitize oil and gas well locations, the Division created a series of digital base maps for the state. The basemap files are in DWG format in an Ohio State Plane projection. Included are two folders: NAD27 and NAD83, and each contains a complete set of data in its respective datum. Each of these directories has the following folders:
- bgd – Contains county based layers, including major roads, townships, streams, cities, labels and boundaries.
- fte – Contains detailed roads.
- State Basemaps – Contains 3 DWG files: “state_II.dwg,” “state_spn.dwg,” and “state_sps.dwg,” which contain township and county boundaries and labels in the two different datum
These datasets are no longer available for download. Please contact the Geologic Records Center to purchase a complete set on DVD for $25 (plus shipping and handling).
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