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Sawatch Ascent

Name: Sawatch Ascent
Start: 2025-09-28
End: 2025-09-28
Location: Nathrop

Nathrop, United States • 28 Sep 2025

The Sawatch Ascent 50k is a challenging high-alpine trail race held in Nathrop, Colorado, showcasing the stunning Sawatch Range. Covering 33 miles with 7,000 feet of vertical gain, the course features a mix of 26 miles of singletrack, paved, and gravel roads. Starting and finishing at the base of Mount Princeton, runners experience panoramic views, including a high point at 13,150 feet.

The route traverses scenic canyons, aspen forests, and the Colorado Trail, offering a runnable yet demanding course. Organized by Freestone Endurance, the event fosters a strong community atmosphere and environmental stewardship. Participants have 11 hours to complete the race, with aid stations and finish line amenities provided. Visit the organization's website for the most recent information.

United States Colorado Nathrop

Race information

Website Registration

50 km

2134 m+

50k

Visit the organization's website for the most recent information.

Trail runs nearby

Fri - Sat Jul 18-19

High Lonesome 100

Mount Princeton - 8 mi from Nathrop

100 mi

The High Lonesome 100 is a challenging 100-mile trail race set in the stunning Sawatch Range of the Colorado Rocky Mountains. Participants will experience a grueling course featuring 23,500 feet of vertical gain, reaching elevations of 13,100 feet. The race includes a loop that traverses beautiful s..

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Transrockies Run

Buena Vista - 7 mi from Nathrop

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The TransRockies Run is a renowned six-day, 120-mile stage race held in Colorado, offering an unforgettable trail running adventure through the Rocky Mountains. This multi-day event challenges participants with rugged terrain and scenic mountain landscapes, fostering a strong community atmosphere am..

Sunday Aug 10

Buena Vista Pack Burro Race

Buena Vista - 7 mi from Nathrop

14 mi

The Buena Vista Pack Burro Race, held in Buena Vista, Colorado, is a unique 14-mile pack burro running event and the third leg of the 2025 PBR Triple Crown. Participants race alongside their burros, donkeys equipped with pack saddles carrying prospector gear, over challenging terrain that reflects t..

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West Line Winder

Buena Vista - 7 mi from Nathrop

30 km

50 km

The West Line Winder is a scenic trail running event held in Buena Vista, Colorado, featuring both 30K and 50K races. Set against the stunning backdrop of the Collegiate Peaks, participants can enjoy a mix of singletrack and forest roads, with significant elevation gain. This event caters to runners..

Saturday Mar 14

Run Through Time Trail Marathon

Salida - 15 mi from Nathrop

2 mi

13 mi

26 mi

The 21st Annual Run Through Time Trail Marathon and Half Marathon takes place in Salida, Colorado, featuring challenging courses on dirt roads, jeep trails, and narrow, hilly single tracks with stunning views of Salida and the Arkansas Valley. Elevations range from 7,000 to 9,000 feet. The event inc..