Coronado Cave, located in Coronado National Memorial, has numerous scalloped and tilted limestone bedding planes. Geologists examining these scallops estimate that at one time as much as 50,000 gallons of water per minute flowed through the cave from east to west.

The cave has been called by several names including Montezuma's Treasure Vault and Geronimo's Cave. Legends claim that it was used by the Apaches as a hide-out when being pursued by the U.S. Army and in the late 1800's it was not uncommon to find arrowheads in the cave.