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  2. List of quarries in the United States - Wikipedia

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

    Zimmerman Kame, NRHP-listed glacial kame and archaeological site in McDonald Township, Hardin County, Ohio, was a commercial gravel pit ending in the 1970s; Dravo Gravel Site, an archeological site with artifacts from the Archaic period above the Great Miami River in Miami Township, Hamilton County, Ohio, located in what is now a gravel pit

  3. Dravo Gravel Site - Wikipedia

    en.wikipedia.org/wiki/Dravo_Gravel_Site

    The Dravo Gravel Site (33HA377 [1]) is an archaeological site located above the Great Miami River in Miami Township, Hamilton County, Ohio, United States. Discovered in the middle of a gravel pit , the site is a leading example of the local manifestation of the Archaic period .

  4. Zimmerman Kame - Wikipedia

    en.wikipedia.org/wiki/Zimmerman_Kame

    A circular hill approximately 20 feet (6.1 m) in height, it was a commercial gravel pit for a time before being abandoned in the 1970s after artifacts of the ancient Glacial Kame culture of Native Americans were found at the site. [2]: 2 Today, the kame is tree-covered and surrounded by farm fields; there are no obvious signs of its significance

  5. Transportation Research Center - Wikipedia

    en.wikipedia.org/wiki/Transportation_Research_Center

    Paved & Gravel Hilly Road Courses: Contains over eight miles of roadway including a 1,000-foot, 10% asphalt slope, various stone slopes, a 23% asphalt slope, a 1.5-mile gravel road, two level cross-country courses and an off-road course. ATV Courses: Washboards, logs, hills, and mud pits complete this ATV testing facility.

  6. Quarry - Wikipedia

    en.wikipedia.org/wiki/Quarry

    A quarry is a type of open-pit mine in which dimension stone, rock, construction aggregate, riprap, sand, gravel, or slate is excavated from the ground. The operation of quarries is regulated in some jurisdictions to manage their safety risks and reduce their environmental impact. [1] [2]

  7. Gravel pit - Wikipedia

    en.wikipedia.org/wiki/Gravel_pit

    Gravel pit lakes are typically nutrient rich and can support thriving ecosystems, but can also present environmental issues such as the release of toxic metals into watersheds from the exposed rock. [2] Old, abandoned gravel pits are normally used either as nature reserves, or as amenity areas for water sports, landfills and walking.

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  9. 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.