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Federal
Mineral Resource Data System (MRDS) Points, U.S. EPA Region 9, 2016, USGS
U.S. Environmental Protection Agency —
Mineral resource occurrence data covering the world, most thoroughly within the U.S. This database contains the records previously provided in the Mineral Resource... -
Federal
Changes in Stream Water Temperatures in the Chesapeake Bay Region, 1960-2014
U.S. Environmental Protection Agency —
This map shows the changes in stream water temperatures in the Chesapeake Bay region from 1960 to 2014. Blue circles represent cooling trends in stream water...