Carlsbad Caverns National Park (Illustrated)

Bats!... millions of black little mammals drifting along the horizon and seeming to fuse into the hazy clouds of a New Mexico sunset! That was the spectacle which led Jim White, back at the turn of the century, to become interested in the colossal phenomenon designated by Act of Congress as Carlsbad Caverns National Park.

If you could ask him about it today, Jim's eyes would probably turn inward as he'd muse and remember. "I thought it was a volcano--but then I'd never seen one. For that mat...