Duncans Mills
Trail Running Calendar near Duncans Mills 2026-2027
Explore the top trail runs near Duncans Mills for 2026-2027! We've gathered 7 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
October 2026
Trail races at Lake Sonoma on October 17–18 2026 offering 100, 50, marathon, half and relay options with significant elevation and staffed aid stations.
November 2026
The 40th annual Annadel Loop is a 6.45 mile trail race in Annadel State Park with staggered starts, awards for the top 13, a limited field, and published member and non member fees.
March 2027
Trail marathon, half, 10K and 5K through Bothe-Napa Valley State Park on March 20, 2027, limited to 300 participants with marked single track routes.
April 2027
Three Lake Sonoma trail races in early April 2027 including a Western States qualifying 100k, a 50k with a bridge crossing, and a women only half marathon.
Trail running event on April 17, 2027 with a hilly half marathon, 10K and 5K, over 1500 ft of ascent and a cup-free policy.
Trail races at Jack London State Historic Park on April 17, 2027 offering Half Marathon, 5.5 mile and 5K courses through vineyard views and Sonoma Mountain hills.