Hell of Hunterdon
📍 New Jersey, United States
Colorado, United States · 12 June 2027
Difficulty: 3/5 — Hard
An authentic high-altitude gravel challenge through Colorado's rugged ranch country featuring four distinct course lengths. Riders face punchy climbs, doubletrack, and fast county roads, concluding with a celebratory community barbecue.
Visit official site →This race is perfect for gravel riders of all experience levels, from families and beginners seeking a scenic 16-mile route to seasoned competitors looking to tackle a grueling 88-mile altitude challenge.
Cyclists who struggle with high-altitude environments, technical descents, and long climbs in exposed, sun-baked ranch country will find the longer routes exceptionally demanding.
Focus your training on building aerobic endurance to handle the high elevation, along with punchy climbing capacity and bike handling skills for technical dirt descents.
Compare your W/kg to see how you stack up against this race's typical level — and which races fit you best right now.
Riders can choose from four routes: the 88-mile Bull Course, the 54-mile Cow Course, the 28-mile Calf Course, and the beginner-friendly 16-mile Cow Dog Course.
All routes begin and end at West Grand High School in Kremmling, Colorado.
The courses feature hard-packed county roads, doubletrack, punchy climbs, long climbs, and technical descents.
Yes, the event features a Friday night community spaghetti dinner and a finish-line BBQ with meal tickets for riders.
The race offers on-site camping, free showers, a bike wash, well-stocked aid stations, and clear course signage.
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