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Geologic Formation Attractions In Monrovia

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Monrovia is a city located in the foothills of the San Gabriel Mountains in the San Gabriel Valley of Los Angeles County, California, United States. The population was 36,590 at the 2010 census, down from 36,929 in 2000. Monrovia has been used for filming TV shows, movies and commercials.
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Geologic Formation Attractions In Monrovia

  • 1. Indian Echo Caverns Hummelstown
    Indian Echo Caverns is a show cave in Derry Township near Hummelstown, Pennsylvania, USA. The limestone caves are open for the public to visit via guided tour. The entrance to the caverns used by modern visitors is located in a bluff along the Swatara Creek. A second entrance was sealed for security purposes when the caverns were commercialized in the late 1920s. The known portions of the caverns, most of which have been commercialized, represent the intersection of two passages: the eastern cavern and the northern cavern, which meet at right angles to form a large space known as the Indian Ballroom. Given the large and accessible natural openings the caverns were likely utilized by Native Americans for storage and shelter, however no evidence of such use has survived. The location was pre...
    From Wikipedia, the free encyclopedia.

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