Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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1. Quaternary Geology 500K - Lines: Ohio

2017. Ohio Geographically Referenced Information Program. Since the publication of the Glacial map of Ohio (Goldthwait, White, and Forsyth, 1961, U.S. Geological Survey Miscellaneous Geologic Investigation...

2. Karst - Karst geology of Ohio: Ohio

2017. Ohio Geographically Referenced Information Program. This data is to be used to locate known and indicated karst features, and to define the probable karst terranes.

3. Quaternary Geology 500K - Geologic Units: Ohio

2017. Ohio Geographically Referenced Information Program. Since the publication of the Glacial map of Ohio (Goldthwait, White, and Forsyth, 1961, U.S. Geological Survey Miscellaneous Geologic Investigation...

4. Quaternary Geology 500K - Glacial Boundary of Ohio: Ohio

2017. Ohio Geographically Referenced Information Program. Since the publication of the Glacial map of Ohio (Goldthwait, White, and Forsyth, 1961, U.S. Geological Survey Miscellaneous Geologic Investigation...

5. C-42 Geologic Atlas of Becker County, Minnesota

2017. Bauer, Emily J, Chandler, V.W, Jirsa, Mark A, Marshall, Katherine J, Gowan, Angela S, Hamilton, Jacqueline D, and Radakovich, Amy L. Plate 1, Data Base, Plate 2, Bedrock Geology, Plate 3, Surficial Geology, Plate 4 Quaternary Stratigraphy, Plate 5 Supplemental Quaternary Stratigr...

6. Karst Feature Inventory Points: Minnesota

2017. University of Minnesota, Department of Geology and Geophysics; Minnesota Department of Natural Resources, Ecological and Water Resources Division. Southeastern Minnesota is part of the Upper Mississippi Valley Karst (Hedges and Alexander, 1985) that includes southwestern Wisconsin and northeas...

7. Springs in: Minnesota

2017. University of Minnesota, Department of Geology and Geophysics; Minnesota Department of Natural Resources (DNR), Ecological and Water Resources Division. Inventory of springs in Minnesota. These data are collected and compiled by the Minnesota DNR as a tool to help create awareness of and appreciatio...

8. USDW - Boundaries: Ohio

2017. Ohio Geographically Referenced Information Program. The Ohio Department of Natural Resources, Division of Geological Survey, with partial funding from the USEPA through the Ohio EPA, has mapped the l...