Join us as we run through Angalls and Demens Canyons for Rancho Cucamonga's only 100% trail run. Set at the foot of the San Gabriel Mountains, the 5K trails are not technical (making it a good course for first-time trail runners) while the 10K features challenging climbs and areas of singletrack. Competitors will run over rocks and roots, cover multiple types of terrain, and go up (and down) some quad-burning hills.