location_city Nathrop
location_on Colorado
flag United States
calendar_today 17 Jul, 2026 – 18 Jul, 2026
directions_run Running
language Official Website
RegisterThe 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
Jul 17, 2026
Distance — 100 Miles
Type — Trail running
06:00
These values represent the 3-year monthly averages for July in Nathrop.
Nathrop is an unincorporated town, a post office, and a census-designated place (CDP) located in and governed by Chaffee County, Colorado, United States. The population was 288 at the 2020 census. The Nathrop post office has the ZIP code 81236.
Read more launch
location_on Alma, Colorado, US
calendar_today Jun 25, 2026
Hand-picked events we think you’ll love.
Nov 21, 2026
The RUN Manatee 5k series offers THREE adventures to celebrate ONE community. Participants will discover Manatee County…
Read more
Nov 28, 2026
Join us for the annual Turkey Trails 5k/10k! A fun, Thanksgiving-themed event that is perfect for the whole family.The…
Read more
Dec 13, 2026
Join us for the annual Candy Cane Course 5k/12k! A fun, Christmas-themed event that is perfect for the whole family.Th…
Read more
Mar 21, 2027
WE ARE NOW OFFERING AN AQUABIKE DIVISION! Triathlon Information:Join us for the annual Space Coast Triathlon, held in …
Read more