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Montezuma Well is a detached unit of Montezuma Castle National Monument located approximately 11 miles from the park. Take Exit 293 from I-17 and drive four miles. No entrance fee is charged. There is a one-third mile loop trail that is not recommended for wheelchair use. A lush, shaded picnic area is also located at the Well.
Montezuma Well is a limestone sink formed long ago by the collapse of an immense underground cavern. Over one and a half million gallons of water a day flow continuously, providing a lush, verdant oasis amid surrounding desert grassland. The waters of the well contain several forms of plant and animal life not found in any other waters of the world. This unique habitat is perhaps due to the constant input of large quantities of warm water that enter through underground springs, keeping the environment within the well very stable.
Prehistoric Hohokam and Sinagua cultures took advantage of this water source by irrigating crops of corn, beans, squash, and cotton. The rich riparian and surrounding uplands provided wildlife and native plants to supplement the agricultural products. Visitors to the site can still see traces of ancient lime encrusted irrigation ditches from past farming activity.
Check out the Official Route and Triplogs.