Larch Madness Trail Races

Okanogan, United States • 18 Oct 2025

The Larch Madness Trail Races, held at Loup Loup Ski Bowl near Twisp, Washington, offer challenging trail running events in the scenic North Cascades. Distances include 5K, 15K, 25K, and 50K, with significant elevation gains up to 18,200 feet on rugged, often off-trail terrain. The courses feature steep climbs and descents through golden larch forests, making for a beautiful yet brutally difficult experience.

Aid stations support longer distances, and dispersed camping is available at the start/finish area. A post-race party with food and drinks celebrates participants. The event supports the Loup Loup Ski Education Foundation and honors the land's indigenous heritage. Visit the organization's website for the most recent information.

Race information

50 km
18200 m+
50k
25 km
9100 m+
25k
15 km
5200 m+
15k
5 km
1300 m+
Visit the organization's website for the most recent information.
Trail runs nearby

The Sunflower Relay, Half Marathon and Marathon will take place in Winthrop on Saturday 25 April 2026. You can run between 13 and 26 miles.