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Introducing the Rim Rock Trail Challenge – 50 Miles of Grit, Glory, and Napa’s Wildest TerrainBe part of history in the making! The first-ever running event on the newly opened trails of the Soscol Headwaters Park in Napa Open Space is here—and it’s not for the faint of heart.
The Rim Rock Trail Challenge isn’t just another ultra. With 50+ miles and a punishing 12,800 feet of elevation gain, this course will rank as one of the toughest 50-milers in Northern California. It’s raw, rugged, and relentlessly beautiful.
Whether you’re:
• Stepping up your game
• Training for your first 100-miler
• Or simply craving a true backcountry challenge…
This is your proving ground.
Race Date: Saturday, May 16, 2026
Location: Skyline Wilderness Park & Soscol Headwaters, Napa, CA
Hosted by: Trail Squirrel Adventures & Bay Trailrunners
Registration opens on Friday May 23rd on UltraSignup. Don’t wait—this one’s going to fill fast. Save your spot at the lowest introductory price
https://ultrasignup.com/register.aspx?did=127024
Long Run Coffee Rim Rock 50 Mile Trail Challenge Bay Area Ridge Trail BayTrailrunners Napa Valley, California Friends of the Napa Open Space District Skyline Wilderness Park Strava Todd Run
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Event Venue
Skyline Wilderness Park, 2201 Imola Ave,Napa, California, United States
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