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  1. The shapefiles with gold deposit types in North America are from U.S. Geological Survey, 2001, National Mineral Resource Assessment 1998: Circular 1178, U.S. Geological Survey, Reston, Virginia.

  2. Jan 1, 1998 · 7000021. Record Source. USGS Publications Warehouse. Through the ages, men and women have cherished gold, and many have had a compelling desire to amass great quantities of it -- so compelling a desire, in fact, that the frantic need to seek and hoard gold has been aptly named "gold fever." Gold was among the first metals to be mined because it ...

  3. This interactive tool serves as a national archive for high-quality, standardized geologic maps created by the U.S. Geological Survey and state geological surveys. The MapView section of the NGMDB displays geologic maps from across the country dating back to 1879. The database is searchable by.

  4. The U.S. Geological Survey's (USGS) Mineral Resources Program's interactive Geologic Map of U.S. States provides a large amount of information on geology, natural resources, and environmental data for every U.S. state, including: Surface and bedrock geology. Mineral resources. Geochemical and geophysical data.

    • TNM Data Delivery Home Page.
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    • More TNM Applications & Tools.
    • TNM Web Services List.
  5. Download Now. Topographic Maps. A signature product of the U.S. Geological Survey. Access USGS Topo Maps. topoBuilder. Create custom USGS topographic maps on demand using the best available data from The National Map. Learn More. US Topo Maps - Powered by The National Map. Available for free and immediate download. Download Now.

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  7. Nov 7, 2017 · Geologic Maps of the 50 United States Created by Andrew Alden from the U.S. Geological Survey's Geologic Map of the United States, 1974, by Philip King and Helen Beikman ( fair use policy ). South Dakota's rocks are a carpet of Cretaceous seabed deposits, punctuated by areas of extremely old rock on east and west.

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