Annadel Half Marathon
Santa Rosa, United States • 6 Apr 2025
The Annadel Half Marathon is a non-profit fundraising event held in Sonoma County, featuring a challenging course designed for experienced trail runners. Over the past 14 years, the event has successfully raised funds to enhance the beauty of the local park. The Half Marathon course includes over 1,500 feet of elevation gain, winding through scenic landscapes of green meadows, wildflowers, and diverse trees. Additionally, the event offers a 10K and a 5K option, with the latter being an out-and-back route into Annadel State Park. Proceeds from the race benefit park improvements for community enjoyment. Visit the organization's website for the most recent information.