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Collection
- Arizona Geologic Faults1
- Arizona Geological Survey1
- BYTES of the BIG APPLE4
- General11
- Illinois Geospatial Data Clearinghouse1
- Indiana Historic Maps4
- IndianaMAP16
- Large Scale Hydrography Network52
- Large Scale Hydrography Surface Water Areas52
- Minnesota Geological Survey12
- Open Baltimore1
- Pennsylvania Spatial Data Access (PASDA)67
- Polar Geospatial Center3
- Purdue Georeferenced Imagery1
- TIGER/Line Files16
- Wisconsin Counties Open Data1