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Geological Survey (U.S.) -- Maps

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View Resource Wisconsin Public Land Survey Records: Original Field Notes

The area that now constitutes the state of Wisconsin was first surveyed by the federal government between the years 1833 and 1866. This survey was performed (as it was across the United States) to divide the public domain into salable-sized lots that could be sold or given away to both encourage settlement through this territory and raise monies for the federal government. While surveyors divided...
View Resource Maryland Geological Survey

The Maryland Geological Survey (MGS) provides excellent information about the geology of the Old Line State, along with public reports and updates on various ongoing projects. The homepage features live earthquake data and maps that deal with oyster habitat restoration projects, fact sheets, and new reports on lead concentrations in well water across the state. The Publications area contains...

View Resource USGS Publications Warehouse

If you have ever dreamed of finding a place to access over 100,000 publications written by experts at the United States Geological Survey, you can stop dreaming. This publication warehouse is a scientific cornucopia of epic proportions. A great place to start is with the New Publications by USGS Authors. Here, publications range from thoughtful meditations on suspended solids in West Fork Beaver...