LibGuides: Finding Online Map Resources: Ohio Maps & Data

Geology Map Resources

Ohio Counties: these links provide pdf printable/ downloadable maps as well as GIS data related to Geology and Groundwater and other topics.

Ground Water Resource Maps by County
These PDF and jpeg images can be downloaded or printed county by county.
Potentiometric Surface Maps
PDF images of Sand & Gravel (Unconsolidated) and Bedrock
(Consolidated) maps can be downloaded and printed by county.
Statewide Aquifer Mapping Project (SAMP)
This project covers glacial and bedrock aquifers and was conducted between 1997-2000. Completed maps can be downloaded or printed from gif or PDF files by county.
Ground Water Pollution Potential Maps
These maps and reports are available to download or print in PDF format by county. Scans and previous reports as well as newer digital additions are both listed. Not all counties are available.

Geology GIS Data

For Ohio downloadable GIS data in shapefile and .e00 interchange formats, use this site to locate information by county and category. Not all data has been updated on the same schedule. Check the metadata for details.

GIMS -Geographic Information Management Systems
The Ohio Department of Natural Resources depository for spatial data can be searched by county or category. Categories include: administrative, biologic, cadastral, demographic, geographic/soils, hydrologic, land use/cover, recreational, topographic, transportation/ infrastructure. Not all data is available for each category and county. Data is downloadable in Arc Shapefile and Arc/INFO Interchange format. Some PDF images of maps are also available for printing and downloading.
Ohio Department of Natural Resources (ODNR)
Website of the Ohio Department of Natural Resources; includes links to publications, recreation sites (parks) and research.
ODNR Soil & Water
This site provides information about the publications of the department including maps and GIS data. Specific programs and publications are also listed on the left side of the page.

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Geology Map Resources

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