Cuyamaca 100K
Descanso, United States • 4 Oct 2025
The Cuyamaca 100K is an endurance running event set in Cuyamaca Rancho State Park, located about an hour east of San Diego, California. The course features three distinct loops, starting and ending at Camp Cuyamaca, with minimal backtracking. The first loop spans 31.5 miles and includes a climb to Cuyamaca Peak, while the second loop covers 12.6 miles near Oakzanita Peak. The final 18.3-mile loop offers breathtaking views along the Pacific Crest Trail before returning to the park. This challenging race showcases the natural beauty of the area and invites volunteers to participate in its organization. Visit the organization's website for the most recent information.