Montezuma Well, a detached unit of Montezuma Castle National Monument, is a natural limestone sinkhole near the town of Rimrock, Arizona through which some 1,500,000USgal of water emerge each day from an underground spring. It is located about 11mi northeast of Montezuma Castle.Before you head to Rimrock, plan trip itinerary details with our user-friendly Rimrock trip planner, to make sure you see all that Rimrock has to offer, including Montezuma Well.
The Well measures 386ft in diameter from rim to rim and contains a near-constant volume of spring water even in times of severe drought. The water is highly carbonated and contains high levels of arsenic. At least five endemic species are found exclusively in Montezuma Well: a diatom, the Montezuma Well springsnail, a water scorpion, the Hyalella montezuma amphipod, and the Motobdella montezuma leech — the most endemic species in any spring in the southwestern United States.
Montezuma Well's steady outflow has been used for irrigation since the 8th century. Part of a prehistoric canal is preserved near the park's picnic ground, and portions of the canal's original route are still in use today.
As with Montezuma Castle, the label "Montezuma" is a misnomer: the Aztec emperor Montezuma had no connection to the site or the early indigenous peoples that occupied the area.
Montezuma Well Reviews
I believe the site is from an extinct volcano. The ruins are around the the waters edge and near the rim. You can go down to the waters edge and/or see the area where the warm water exits the crater..... more »
My pug and I visited this site recently. We were pleasantly surprised how we were able to walk down to the water level, see caves that had been visited throughout the ages as well as some cliff... more »
Such a secluded and beautiful experience. Please be respectful as it is sacred water and land.
Extremely interesting place. Stone age dwellings. Good information on trail. Loved it. Watch for snakes off main trails in warm weather.
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