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  2. Ohio Caverns - Wikipedia

    en.wikipedia.org/wiki/Ohio_Caverns

    Ohio Caverns is a show cave located 30 miles (48 km) from Dayton, Ohio near West Liberty, in Salem Township, Champaign County, Ohio in the United States.A popular tourist destination and member of the National Caving Association, it is the largest of all the cave systems in Ohio and contains many crystal formations.

  3. Geology of Ohio - Wikipedia

    en.wikipedia.org/wiki/Geology_of_Ohio

    The geology of Ohio formed beginning more than one billion years ago in the Proterozoic eon of the Precambrian. The igneous and metamorphic crystalline basement rock is poorly understood except through deep boreholes and does not outcrop at the surface. The basement rock is divided between the Grenville Province and Superior Province.

  4. Crystal Cave (Ohio) - Wikipedia

    en.wikipedia.org/wiki/Crystal_Cave_(Ohio)

    The Crystal Cave is a limestone cave located in Put-in-Bay, Ohio, located on South Bass Island in Lake Erie. [1] In 1887, Gustav Heineman emigrated from Baden-Baden, Germany, to Put-in-Bay, Ohio, where he established a winery. In 1897 he dug a well beneath his winery and discovered a large vug at a depth of 30 feet (9.1 m).

  5. Cleveland Shale - Wikipedia

    en.wikipedia.org/wiki/Cleveland_Shale

    The Cleveland Shale underlies much of northeast Ohio in beds of varying thickness. In northeast Ohio, the member does not appear east of the Grand River. [7] Measurements taken in northeast Ohio show the Cleveland Shale to be 7 feet (2.1 m) [7] to 100 feet (30 m) thick. [9]

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

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

    ^ Since 1983, Massachusetts has had 3 other official state rocks: State Historical Rock (Plymouth Rock), State Explorer Rock (Dighton Rock), and State Building and Monument Stone . In 2008, a State Glacial Rock (Rolling Rock) was designated as well. [82]

  7. Who wants to frack under an Ohio state park? State law ... - AOL

    www.aol.com/wants-frack-under-ohio-state...

    The road to fracking under Ohio's state parks and wildlife areas has been paved with secrecy, opponents say.

  8. Seneca Caverns (Ohio) - Wikipedia

    en.wikipedia.org/wiki/Seneca_Caverns_(Ohio)

    Seneca Caverns is a show cave located in northeastern Seneca County, Ohio, USA, just outside Flat Rock. The cave is designated as a Registered Natural Landmark by the Ohio Department of Natural Resources.

  9. List of National Natural Landmarks in Ohio - Wikipedia

    en.wikipedia.org/wiki/List_of_National_Natural...

    One of the best remaining examples of an oak-hickory dominated forest in Ohio. Part of Goll Woods State Nature Preserve. Hazelwood Botanical Preserve: 1974: Hamilton: state Highly detailed study of the site's plant ecology was published in 1929. Managed by the University of Cincinnati. Highbanks Natural Area: 1980

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