Diablo Trails Challenge

The Diablo Trails Challenge is an exciting running event taking place on Mount Diablo, featuring a variety of distances including a 50K, half marathon, 10K, and 5K. Scheduled for April 5, 2025, this challenge caters to runners of all experience levels, from beginners to seasoned ultra-runners. A portion of the entry fees supports Save Mount Diablo, an organization dedicated to preserving open spaces around the mountain.

Participants can enjoy the scenic trails while contributing to a worthy cause, making this event a celebration of both fitness and environmental stewardship. Visit the organization's website for the most recent information.