all races
The Peak 50K, Marathon & Half Marathon
by Second Wind Trail Running
trailSaturday, October 17, 2026
Lake Cuyamaca Recreation Area
Milk Ranch Road, Julian, CA 92036
Milk Ranch Road, Julian, CA 92036
from $100
distances
50KMarathonHalf Marathon
certifications
UltraSignup Listed
A multi-distance trail race climbing Cuyamaca Peak, San Diego County's second highest summit. The 50K and marathon feature 10,000 feet of total elevation gain and loss on single-track trails, with a 2,200-foot climb in the first 6.5 miles. The half marathon follows the Conejos Trail to the summit before a fast downhill finish. Organized by Second Wind Trail Running since 2017.
course details
Half Marathon
terrain: trailcourse: Conejos Trail climb to Cuyamaca Peak summit then return — Lake Cuyamaca start, steep singletrack.elevation: +2200 ft
Marathon
terrain: trailcourse: Summit climb (2,200ft) then 2,800ft descent to Sweetwater and back over the peak. 10,000ft total elevation change.elevation: +5000 ft
50K
terrain: trailcourse: Marathon route plus a 5-mile loop near Sweetwater. All singletrack on San Diego County's second-highest peak.elevation: +6000 ft
links
start location
Lake Cuyamaca Recreation Area · Milk Ranch Road, Julian, CA 92036
tags
trailmountainultraCuyamacaJulian50Kmarathon