Marion County

• About Marion County Geology
• Data Download
• Credits

• Clay Thickness
• DEM Terrain
• Gamma-Ray Logs
• iLITH Database

• Bedrock Topography
• Bedrock Geology
• Glacial Geology
• Hydrogeologic Framework

• Map-Use Tutorial
• Interactive Map

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The following data can be downloaded from this Web page:

• Gamma-ray logs in PDF format
• Gamma-ray logs in LAS format
• Metadata for new layers created for the Marion County IMS site
• Metadata for reference layers from the Indiana GIS Atlas IMS site