Cuyamaca 100K

The Cuyamaca 100K is an ultramarathon held in Cuyamaca Rancho State Park near Julian, California, about an hour east of San Diego. The challenging course features three distinct loops starting and ending at Camp Cuyamaca. The first loop covers 31.5 miles on the park's western side, including a climb to Cuyamaca Peak at 6,500 feet.

The second loop spans 12.6 miles near Oakzanita Peak, while the final 18.3-mile loop traverses the northern park area, briefly entering Anza Borrego and following the Pacific Crest Trail with stunning desert views. The race offers a scenic and varied trail experience with minimal repetition. Visit the organization's website for the most recent information.