Course
A three-loop 100K run on trail through Cuyamaca Rancho and Anza Borrego Desert State Parks east of San Diego, crossing oak woodland, meadow, pine forest and chaparral. Loops of roughly 32, 13 and 18 miles return to a shared start/finish, with aid stations on each loop.
Key dates
- ★Race dayOctober 2027 · date to be announced
About
The Cuyamaca 100k runs through Cuyamaca Rancho State Park in the mountains east of San Diego, near Julian, on forested singletrack and fire roads through the Cuyamaca backcountry.
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