High Lonesome 100

  • Date Fri 17th July 2026 - Sat 18th July 2026
  • Time 6:00AM MDT
  • Location Nathrop, Colorado
  • Price $489.25
  • Races 1 race
  • Distances Ultra

Event summary

Get ready for an exhilarating adventure at the High Lonesome 100, taking place from July 17 to July 18, 2026, in the breathtaking Nathrop, Chaffee area of Colorado. This incredible endurance race covers a challenging 101 miles through the stunning Sawatch Range of the Rocky Mountains, boasting a staggering 23,500 feet of vertical gain. Runners will experience the thrill of traversing the Continental Divide and the Colorado Trail, while exploring two ghost towns, crossing five alpine passes, and navigating remote basins and soaring ridges.

The High Lonesome 100 is designed for those who crave a true mountain race experience, reminiscent of classic 100-milers. With an average elevation of 10,600 feet and a high point reaching 13,100 feet, this course is a true test of endurance and resilience. The event is known for its welcoming community and experienced staff, ensuring a supportive environment for all participants. Don't miss your chance to be part of this unforgettable journey through some of Colorado's most beautiful single track!

Organiser's Description

The High Lonesome 100 is a high flying endurance race in the Sawatch range of the Colorado Rocky Mountains. With 23,500' of vertical gain and reaching an elevation of 13,100', it's a hell of a course. The race runs in a loop through some of the most beautiful single track in the state, and takes runners on the Continental Divide and Colorado Trail, through 2 ghost towns, over 5 alpine passes, through remote basins, and over soaring ridges. It's also run and staffed by experienced and quality individuals, so you'll get to be a part of a wonderful community. If you're looking for a true mountain race, created in the spirit of the classic 100 milers, then look no further.

STATS

* Entry fee: $465
* Start/Finish Location: County Road 321, Mount Princeton, Colorado (coordinates: 38.740282, -106.161237)
* Distance: 101 miles
* Average Elevation: 10,600'
* High Point: 13,100'
* Low Point: 8,150'
* Total Elevation Gain: 23,500'
* Cut off: 37 hours
* Course type: 66% single track, 21% mining roads, 10% gravel roads, and 3% paved roads

Races

  • 100 Miler

    Incl. $24.25 Fee & T-Shirt

    Fri 17th July 2026 (6:00AM MDT)

    $489.25

    Includes: T-shirt, 750ml custom engraved bottle of Laws Whiskey, free professional race photos from Mile 90 Photography, live runner tracking, and a handmade-in-Colorado belt buckle (if you finish!).

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Location

Co Rd 321, Nathrop, 81236, CO, United States

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