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Mining Districts and Major Transportation Routes: 1851-1995

Explore the areal extent of mining districts, historic trails, major railroads, and highways from 1851 to 1995. A comprehensive dataset provided by the U.S. Department of the Interior and U.S. Geological Survey.

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Mining Districts and Major Transportation Routes: 1851-1995

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  1. Mining Districts Areal extent of district boundaries Historic Trails Major Railroads Major Highways Major Mining Districts 1851 - 1995 U.S. Department of the Interior U.S. Geological Survey

  2. Mining Districts Areal extent of district boundaries Historic Trails Major Railroads Major Highways Major Mining Districts 1851 - 1860 U.S. Department of the Interior U.S. Geological Survey

  3. Mining Districts Areal extent of district boundaries Historic Trails Major Railroads Major Highways Major Mining Districts 1861 - 1870

  4. Mining Districts Areal extent of district boundaries Historic Trails Major Railroads Major Highways Major Mining Districts 1871 - 1880

  5. Mining Districts Areal extent of district boundaries Historic Trails Major Railroads Major Highways Major Mining Districts 1881 - 1890

  6. Mining Districts Areal extent of district boundaries Historic Trails Major Railroads Major Highways Major Mining Districts 1891 - 1900

  7. Mining Districts Areal extent of district boundaries Historic Trails Major Railroads Major Highways Major Mining Districts 1901 - 1910

  8. Major Mining Districts 1911 - 1920 Mining Districts Areal extent of district boundaries Historic Trails Major Railroads Major Highways

  9. Mining Districts Areal extent of district boundaries Historic Trails Major Railroads Major Highways Major Mining Districts 1921 - 1930

  10. Mining Districts Areal extent of district boundaries Historic Trails Major Railroads Major Highways Major Mining Districts 1931 - 1940

  11. Mining Districts Areal extent of district boundaries Historic Trails Major Railroads Major Highways Major Mining Districts 1941 - 1950

  12. Mining Districts Areal extent of district boundaries Historic Trails Major Railroads Major Highways Major Mining Districts 1951 - 1960

  13. Major Mining Districts 1961 - 1970 Mining Districts Areal extent of district boundaries Historic Trails Major Railroads Major Highways

  14. Mining Districts Areal extent of district boundaries Historic Trails Major Railroads Major Highways Major Mining Districts 1871 - 1980

  15. Mining Districts Areal extent of district boundaries Historic Trails Major Railroads Major Highways Major Mining Districts 1981 - 1990

  16. Mining Districts Areal extent of district boundaries Historic Trails Major Railroads Major Highways Major Mining Districts 1991 - 1995

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