High Lonesome 100

Co Rd 321
Nathrop, CO 81236

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Event 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 13,150', 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. We're looking forward to our 5th year!


  • Entry fee: $450
  • Start/Finish Location: County Road 321, Mount Princeton, Colorado (coordinates: 38.740282, -106.161237)
  • Distance: 100 miles
  • Average Elevation: 10,600'
  • High Point: 13,150'
  • Low Point: 8,150'
  • Total Elevation Gain: 23,500'
  • Cut off: 36 hours
  • Course type: 66% single track, 21% mining roads, 10% gravel roads, and 3% paved roads

Event Location & Accomodations

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