(Kelly of the Clue Crew reports from inside Carlsbad Caverns Nat'l Park, New Mexico.)  The immense chambers in the cave at Carlsbad Cavern are the result of the aggressive dissolution of limestone by this acid, H2SO4
[DOC] [TLE] Geologic Formations - Carlsbad Caverns National Park (U.S. ... [PAR] Carlsbad Caverns National Park preserves a portion of the Capitan ... no 
evidence that these huge cave chambers were dissolved by carbonic acid.