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  2. List of quarries in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_quarries_in_the...

    State Quarry, Iowa Men's Reformatory, Anamosa, Iowa, NRHP-listed, includes a quarry; T.J. Gipple's stone quarry, near NRHP-listed Gipple's Quarry Bridge (1893), Columbus Junction, Iowa; Old State Quarry, North Liberty, Iowa, NRHP-listed; Quarry, Iowa, site of limestone quarrying in Marshall County, Iowa. Town was laid out by Le Grand Quarry ...

  3. List of open-pit mines - Wikipedia

    en.wikipedia.org/wiki/List_of_open-pit_mines

    New Cornelia mine – inactive copper mine near Ajo, Arizona; Ray mine – Asarco copper mine located in Pinal county, Arizona; Red Dog mine – zinc and lead mine in Red Dog Mine, Alaska; Rio Tinto Borax Mine – California's largest open-pit mine and the largest borax mine in the world; Thompson Creek mine – molybdenum mine in Custer County ...

  4. Category:Quarries in the United States - Wikipedia

    en.wikipedia.org/wiki/Category:Quarries_in_the...

    Carbaugh Run Rhyolite Quarry Site; Centennial Beach; Civilian Conservation Corps Quarry No. 1 and Truck Trail; Civilian Conservation Corps Quarry No. 2; Clark and McCormack Quarry and House; Coldspring (company)

  5. Open-pit mining - Wikipedia

    en.wikipedia.org/wiki/Open-pit_mining

    Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, [1] is a surface mining technique that extracts rock or minerals from the earth. Open-pit mines are used when deposits of commercially useful ore or rocks are found near the surface where the overburden is relatively thin. In contrast, deeper mineral ...

  6. Lists of mines in the United States - Wikipedia

    en.wikipedia.org/wiki/Lists_of_mines_in_the...

    State: Coordinates: Associated town: Owner: Dates: Comments: Crater of Diamonds State Park: Arkansas: Murfreesboro: Arkansas: 1906–Present (Open to public for small fee) [1] Commercial mining ventures failed, only diamond mine accessible to the general public.

  7. Thornton Quarry - Wikipedia

    en.wikipedia.org/wiki/Thornton_Quarry

    Overhead view of the quarry. Thornton Quarry is one of the largest aggregate quarries in the world, located in Thornton, Illinois just south of Chicago. The quarry is 1.5 miles (2.4 km) long, 0.5 miles (0.80 km) wide, and 450 feet (140 m) deep at its deepest point. Gallagher Asphalt Corporation has been operating on the grounds of the quarry ...

  8. NC DEQ agrees to permit RDU quarry over objections of ... - AOL

    www.aol.com/nc-deq-agrees-permit-rdu-152827181.html

    The Department of Environmental Quality reached a settlement with Wake Stone Corp. that will allow the company to mine stone on land adjacent to Umstead State Park.

  9. List of copper mines in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_copper_mines_in...

    San Juan County, Utah: Lisbon Valley Mining Company Copper ore, open pit, heap leached 10–15 (2018) [9] 17 Miami: Gila County, Arizona: Freeport-McMoRan: Copper ore, leached 5 (2021) [2] 18 Carlota Gila County, Arizona: KGHM Polska Miedź: Porphyry copper open pit, producing copper cathode 3.2 (2018) [10] 19 Pumpkin Hollow (see Anaconda) Lyon ...