Run in the shadow of Mt. Umunhum with the deer and a few of your favorite running pals. Set in the Sierra Azul Open Space Preserve, this one of a kind non-timed running event provides unique access to gorgeous trails and scenery not commonly viewed. 100% trail/fire road.
The half-marathon challenge course has plenty of steep climbs and exposure to make sure you get a fantastic workout. The 10K course is extremely runnable, a great introduction to California trail running.