Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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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...

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Pollution Sensitivity of Near-Surface Materials: Minnesota

Pollution Sensitivity of Near-Surface Materials: Minnesota

2016. Minnesota Department of Natural Resources, County Geologic Atlas Program. This dataset estimates the pollution sensitivity of near-surface materials from the transmission time of water through 3 feet of soil and 7 feet of...