NM-006 Carlsbad Caverns National Park

Marker text: CARLSBAD CAVERNS NATIONAL PARK
These vast and magnificent caverns contain over 21 miles of explored corridors. The chambers contain countless stalactites and stalagmites unrivaled in size and beauty. The caverns are within a reef that formed in an ancient sea 240 million years ago. Millions of years later, the reef was fractured, allowing ground water to begin work fashioning the caverns.