Articles

Belgian Ultrarunner Karel Sabbe's Record-Breaking Pacific Crest Trail Run Showcased in New YouTube Documentary

Explore Karel Sabbe's record-breaking Pacific Crest Trail run in a riveting documentary. Jour..

Trail Running: How it Can Help Reduce Stress and Anxiety

Trail running is an effective way to reduce stress, anxiety, and improve physical and mental he..

Trail Running vs. Road Running: Which One Is Right For You?

When it comes to running, there are two primary options to choose from: trail running and road..

Operation Haystack

Name: Operation Haystack
Start: 2026-06-27
End: 2026-06-27
Location: Nederland

Nederland, United States • 27 Jun 2026

Operation HAYSTACK

Operation HAYSTACK is a mountain running event held in Nederland, Colorado. The course covers a total distance of 13.1 miles, designated as a half marathon. Participants navigate a route that includes a total elevation gain of 4,226 ft. The summit remains a central feature of the landscape throughout the event.

The event takes place on June 27, 2026. The location is situated at County Road 16 in Nederland. The activity is organized as an offline event where participants focus on reaching the summit while maintaining visual contact with the peak during the journey. Visit the organization's website for the most recent information.

13.1 miles (Half Marathon) with 4,226 ft elevation gain.

United States Colorado Nederland

Race information

Registration

13 mi

Half Marathon

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

Trail runs nearby

Saturday May 9

The Great CO74 Trail Run

Kittredge

7 mi

A community trail event in Kittredge featuring a 7.4 mile route through private land and O'Fallon canyon trails, plus a kids run where children run one lap per year. Manual timing, staggered cohort starts, and a post-race park gathering.

Saturday May 23

Samson's Revenge

Samson's Revenge is a trail race at the YMCA of the Rockies in Estes Park offering 50k, 25k and 10k options. The course uses a roughly 10 km loop with a prominent Bible Point ascent and two aid stations.

Saturday May 23

GMR Backyard Ultra

Golden

Backyard Ultra

4 mi

Test your endurance at this Golden Colorado event following the classic backyard format with 4.17 mile laps every hour. Support the Sun Valley Kitchen and Community Center while pushing for your personal best distance.

Saturday May 30

Elk Meadow 10K Trail Race

Evergreen

10 km

A 10K trail race through Elk Meadow Open Space Park following Pioneer Trail clockwise around the meadow, with downhill sections along Highway 74 and wooded singletrack at the mountain base. The race is cup free and has no aid stations.