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The Big Room inside New Mexico's Carlsbad Cavern covers 8.2 acres. It's the largest readily accessible cave chamber in North America, the National Park Service says.
ILLUSTRATION · AIThe Big Room in Carlsbad Cavern covers 8.2 acres, the largest readily accessible cave chamber in North America, the National Park Service says.
Carlsbad Caverns National Park lies in the Guadalupe Mountains of southeastern New Mexico. About 120 caves are known there, and the NPS notes that number will change as exploration continues.
Carlsbad Cavern, developed for public touring, has more than 30 miles of surveyed passages, and its Big Room covers 8.2 acres (3.3 hectares). The park's longest cave, Lechuguilla, exceeds 140 miles and is open only to research and exploration.
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