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  2. Lead, South Dakota - Wikipedia

    en.wikipedia.org/wiki/Lead,_South_Dakota

    Lead (/ ˈ l iː d / LEED) [7] is a city in Lawrence County, South Dakota, United States. The population was 2,982 at the 2020 census . [ 8 ] Lead is located in western South Dakota, in the Black Hills near the Wyoming state line.

  3. Homestake Mine (South Dakota) - Wikipedia

    en.wikipedia.org/wiki/Homestake_Mine_(South_Dakota)

    The Homestake Mine pit in Lead, South Dakota Typical auriferous (gold-bearing) greenschist gold ore from the Homestake Mine. Two small masses of native gold (Au) are visible near the bottom right. The Homestake Mine was a deep underground gold mine (8,000 feet or 2,438 m) located in Lead, South Dakota.

  4. Homestake Mining Company - Wikipedia

    en.wikipedia.org/wiki/Homestake_Mining_Company

    On April 9, 1876 Moses and Fred Manuel established the Homestake Mine near Bobtail Gultch in South Dakota in the Black Hills. [1]George Hearst (father of William Randolph Hearst), Lloyd Tevis, and his brother-in-law James Ben Ali Haggin bought the 10-acre Homestake Mine from its discoverer, Moses Manuel, for $70,000, and incorporated the Homestake Mining Company on November 5, 1877.

  5. List of U.S. state minerals, rocks, stones and gemstones

    en.wikipedia.org/wiki/List_of_U.S._state...

    In 1986, California named benitoite as its state gemstone, a form of the mineral barium titanium silicate that is unique to the Golden State and only found in gem quality in San Benito County. [ 80 ] ^ Colorado is the only state whose geological symbols reflect the national flag's colors: red (rhodochrosite), white (yule marble), and blue ...

  6. Black Hills and Fort Pierre Railroad - Wikipedia

    en.wikipedia.org/wiki/Black_Hills_and_Fort...

    The Black Hills and Fort Pierre Railroad (BH&FP) was a 3 ft (914 mm) narrow gauge [1] railroad in the Black Hills of the U.S. state of South Dakota.It was created by the Homestake Mining Company and initially ran from Lead to Calcite and Piedmont by way of Elk Creek.

  7. Fairburn Agate - Wikipedia

    en.wikipedia.org/wiki/Fairburn_Agate

    The Fairburn Agate is a type of gemstone found in the agate beds of Southwestern South Dakota and Northwestern Nebraska. It is also the state gemstone of South Dakota. [1] Fairburns are characterized from other types of agate by their colors and the shape of the bands. [1] [2]

  8. Sanford Underground Research Facility - Wikipedia

    en.wikipedia.org/wiki/Sanford_Underground...

    The Sanford Underground Research Facility (SURF), or Sanford Lab, is an underground laboratory in Lead, South Dakota. The deepest underground laboratory in the United States, it houses multiple experiments in areas such as dark matter and neutrino physics research, biology, geology and engineering. There are currently 28 active research ...

  9. Deadwood, South Dakota - Wikipedia

    en.wikipedia.org/wiki/Deadwood,_South_Dakota

    Everything changed after Lieutenant Colonel George Armstrong Custer was ordered to lead an expedition into the Black Hills and announced the discovery of gold in 1874, on French Creek near present-day Custer, South Dakota. This announcement was a catalyst for the Black Hills Gold Rush, and miners and entrepreneurs swept into the area. They ...