Arizona Monster 300
Patagonia, United States • 27-3 Mar-Apr 2026
Event Overview
The Arizona Monster 300 is a point-to-point ultramarathon covering 304 miles through Southern Arizona's Sonoran Desert. The route gains over 41,000 feet in elevation and features a mix of single-track trail, bike paths, and paved and dirt roads.
Course and Terrain
The course is located near Patagonia, Arizona. The terrain consists of approximately 259 miles of single-track trail, 34 miles of bike path, 9.5 miles of paved road, and 6 miles of dirt road. The event takes place on National Forest Lands and has an overall cutoff time of 170 hours.
Event Details
The route includes 19 aid stations. The Sonoran Desert setting is characterized by subtropical winter warmth and two rainy seasons, supporting diverse plant and animal life. The course traverses high-elevation mountains and backcountry terrain. Visit the organization's website for the most recent information.