Cave of Swallows
Open-air pit cave in Aquismón, San Luis Potosí, Mexico / From Wikipedia, the free encyclopedia
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The Cave of Swallows, also called the Cave of the Swallows (Spanish: Sótano de las Golondrinas), is an open-air pit cave in the municipality of Aquismón, San Luis Potosí, Mexico. The elliptical mouth, on a slope of karst, is 49 by 62 m wide[2] and is undercut around all of its perimeter, widening to a room approximately 303 by 135 meters (994 by 442 ft) wide.[2] The floor of the cave is a 333-meter (1,092 ft) freefall drop from the lowest side of the opening, with a 370-meter (1,214 ft) drop from the highest side,[2] making it the largest known cave shaft in the world, the second deepest pit in Mexico and perhaps the 11th deepest sheer drop in the world.[3][lower-alpha 1]
Sótano de las Golondrinas | |
---|---|
Location | Aquismón, San Luis Potosí, Mexico |
Length | VR = 515 m Entrance pit:
|
Discovery | 27 December 1966[1] |
Hazards | Free fall |
Access | No restrictions to view entrance; permit required to descend |