Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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Auditor's Office Downloads for Mercer County, Ohio

2015-present. Mercer County Auditor's Office. Website containing downloadable shapefiles for parcels and transportation. Also contains aerial photography from 2015.

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GIS and Map Data Downloads for Pickaway County, Ohio

2015-present. Pickaway County GIS Office. Website containing downloadable shapefiles for parcels, addresses, transportation, boundaries, hydrology, and more. Also contains 2017 aerial photo...

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Illinois EPA Open Data

2015-2018. Illinois Environmental Protection Agency. The Illinois Environmental Protection Agency's collection of geospatial resources on their Open Data Geoportal include vehicle emissions testing lo...