Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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1. Mean High High Water By County in 2100: Maryland

2100. Maryland iMap. This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. The feature layer supports Maryland State Highway Administrati...

2. Mean High High Water By County in 2050: Maryland

2050. Maryland iMap. This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. The feature layer supports Maryland State Highway Administrati...

3. Glacial Landsystems: Michigan

2042. State of Michigan.

4. Estimated Groundwater Recharge: Michigan

2041. State of Michigan. This data set provides an estimate of annual groundwater recharge for each public land survey section in Michigan.

5. Aquifer Characteristics Of Glacial Drift: Michigan

2040. State of Michigan. This shape file was derived from the 1981 publication of the Hydrological Atlas of Michigan plate 26. Three plates of the Aquifer Characteristics o...

6. Stream Rivers Assessment Units: Michigan

2039. State of Michigan.

7. Inland Lake Contours: Michigan

2038. State of Michigan.

8. Base Flow of Michigan Streams: Michigan

2037. State of Michigan. This data set provides estimates of the ground-water contribution to stream flow, frequently referred to as base flow, in cubic feet per second. Th...

9. Great Lakes Assessment Units: Michigan

2036. State of Michigan.

10. River Valley Segments: Michigan

2035. State of Michigan.

11. Lake Polygons: Michigan

2034. State of Michigan.

12. Inland Lake Assessment Units: Michigan

2033. State of Michigan.

13. Watershed Boundary - 8 Digit: Michigan

2032. State of Michigan. This dataset at 1:24,000 scale is a greatly expanded version of the hydrologic units created in the mid-1970's by the U.S. Geological Survey under ...

14. Watershed Boundary - 12 Digit: Michigan

2031. State of Michigan. This dataset at 1:24,000 scale is a greatly expanded version of the hydrologic units created in the mid-1970's by the U.S. Geological Survey under ...

15. Hydrography Polygons: Michigan

2030. State of Michigan.

16. Watershed Basins: Michigan

2029. State of Michigan.

17. Major Watersheds-Subbasins: Michigan

2028. State of Michigan. The Michigan's Major Watersheds - Subbasins shape file depicts the drainage areas of 20 square miles or greater at geographic features such as the ...

18. Saginaw Bay (Lake Huron) Shoreline: Michigan

2027. State of Michigan. They purpose of this file is to provide the most current view of the boundaries of the individual Great Lakes.

19. Lake St. Clair Shoreline: Michigan

2026. State of Michigan. This data set is part of the Michigan Geographic Framework. The framework serves as the digital base map for State of Michigan government. Currentl...

20. Lake Michigan Shoreline: Michigan

2025. State of Michigan. This data set is part of the Michigan Geographic Framework. The framework serves as the digital base map for State of Michigan government. Currentl...