Our online store is currently offline, and our team is working to restore service as quickly as possible. If you’d like to purchase tickets or memberships in the meantime, please give us a call at 520-883-1380 and the Guest Services team will be happy to help. We appreciate your understanding.

Milpitas Wash drains the Chuckwalla and Chocolate Mountains and flows into the Colorado River. This is one of the largest washes in California, nearly a mile wide at its lower end. Despite the large watershed, the wash carries water only once or twice a year because downpours are rare. Most of the trees are desert ironwoods. The vehicle tracks in the lower right provide scale.


Silhouette Icon