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Existing comment: Montezuma Well:

A funnel-shaped, limestone sink containing a pool of water 55 feet deep and 368 feet across, Montezuma Well is a limestone sink formed long ago by the collapse of an immense underground cavern.

Subterranean springs of warm water replenish the well with over a million and a half gallons of water a day: the amount unvarying, apparently since prehistoric times. The water maintains an even temperature of 76 F degrees (24 C degrees) year around.

Water from the well flows out through a side cave in the limestone cliffs to your right.

We do not know what the first settlers called this place, but early soldiers attributed the deep pool of water in the desert to the Aztec emperor who lived 2,000 miles south and several years earlier.
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