31 miles of wine country singletrack capped by the iconic Lake Sonoma bridge crossing
Other trail races within 123 miles
The Lake Sonoma 50k delivers a concentrated taste of wine country singletrack, rolling from the Visitor Center through South Lake, Island View, Warm Springs Creek, Wulfow, Liberty Glen, and the Bummer aid stations before crossing the iconic Lake Sonoma bridge. New to the 2026 spring lineup, this 31-mile course packs 5,700 feet of cumulative gain across relentless rolling hills and shaded madrone groves, finishing with a fast descent to the festival finish line. Four full aid stations stock Skratch nutrition, with drop bag access at Warm Springs and crew support at Liberty Glen.
Some ultra experience recommended
Geyserville, CA, United StatesApril 11, 2026
| Location | Mile | Elevation |
|---|---|---|
Start Start | 0.0 | 230 ft |
South Lake Aid Station | 2.4 | 807 ft |
Island View Aid Station | 7.0 | 515 ft |
Warm Springs Aid Station | 13.9 | 499 ft |
Wulfow Aid Station | 19.3 | 787 ft |
Liberty Glen Aid Station | 22.0 | 1,093 ft |
Bummer Aid Station | 27.8 | 1,089 ft |
Finish Finish | 31.1 | 226 ft |
Sign in to see cutoffs, crew access, drop bags, and services for every aid station.
Vehicle and tent camping permitted Friday and Saturday nights right next to the start/finish at the Lake Sonoma Visitor Center. No reservation required. Cars and Sprinter-style vans only in the lot — no trailers, tow-behinds, or pop-outs. Tent camping in designated areas only. Quiet hours 9pm–4am.
No required gear specified
No recommended gear specified
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