Preserve, southeastern New Mexico, U.S. Established as a national monument in 1923 and as a national park in 1930, it covers 73 sq mi (189 sq km). Beneath the surface winds a maze of underground chambers; one of the largest caverns ever discovered, the Big Room, is about 2,000 ft (600 m) long and 1,100 ft (330 m) wide, and its ceiling arches 255 ft (78 m) above the floor. In the summer a colony of bats inhabits a part of the caverns known as Bat Cave.
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Caverns project will bring visitors, jobs ; Owners, officials eager to see 15,000 to 20,000 more visitors this year.
Mar 17, 2012; WEST LIBERTY -- A project to open new sections of the Ohio Caverns is expected to mean a handful of new jobs and 15,000 to...