|« Old Maps Online's New Georeferencing Project||Temporary workaround for finding topographic maps »|
The United States Geological Survey (USGS) and the American Association of State Geologists (AASG) have just re-released the National Geologic Map Database (NGMDB) on Geologic Map Day, 2012. The NGMDB provides ". . . well-documented and standardized geoscience information that can be used to support research, understanding, and decisions on a wide breadth of societal needs," including over 90,000 products from over 600 publishers.
One example of the improvements made to the NGMDB is MapView, which provides, "the systematic, regional mapping of the bedrock and surficial deposits, conducted by Federal, State, Universtiy, and private entities since the 1800's." Find out more about MapView and other updates at the NGMDB site.