Coldwater Rumble

Coldwater Rumble, organized by Aravaipa Running, takes place at Estrella Mountain Competitive Track in Estrella Mountain Regional Park, Goodyear, Arizona. The event offers six distances: 100 Miler, 100K, 60K, 40K, 10 Miler, and 5 Miler, and is the fifth race in the Desert Runner Trail Series. Runners traverse desert trails winding through the rugged Sierra Estrella foothills, delivering challenging yet scenic terrain.

The race emphasizes sustainability with cupless racing and reusable cups. All finishers receive a finisher award, and 100-mile finishers earn buckles. The event also offers volunteer opportunities and contributes to the series’ overall standings, showcasing Arizona’s premier trail and ultra running scene. Visit the organization's website for the most recent information.