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Bedrock Geology of Iowa

2017. Iowa Geological Survey. Bedrock Geology of Iowa This zip file contains a file geodatabase with the following feature classes: Bedrock Faults Bedrock Geology Bedrock Topogr...

Statemap Bedrock Geologys: Iowa

2018. Each zip file contains a shapefile of the specified area.

Statemap Surficial Geologys: Iowa

2018. Iowa Geological Survey. Surficial Geology of Iowa Each zip file contains a shapefile of the area specified.