About This Race
The Dimple Dell Half Marathon offers runners a taste of Utah's renowned trail running scene on a course designed for both newcomers and seasoned trail runners seeking fast times. Starting at Lone Peak Park in Sandy, the race drops into Dimple Dell Canyon onto wood-chipped trails that provide excellent footing through scenic terrain. The course follows the canyon floor through areas known for spectacular fall colors in mid-October, featuring bridge crossings and a memorable tunnel passage. The most significant challenge comes with a climb to the Rim Trail, where runners are rewarded with panoramic vistas before the turnaround at Granite Park. With 95% trail surface and only 1,176 feet of elevation gain over 13 miles, this race strikes an ideal balance between technical trail experience and accessibility. Happy Trails Running keeps field sizes small at 300 runners or fewer, creating an intimate atmosphere while preserving trail access. The race director's no-cutoff policy ensures every runner can complete the distance, whether running or walking. Trail marshals are positioned at key intersections to prevent wrong turns, while well-stocked aid stations feature Tailwind, gels, and an eclectic mix of runner favorites.
The course begins with a descent from Lone Peak Park into Dimple Dell Canyon, following wood-chipped and single-track trails for 95% of the distance. Runners traverse scenic bridge crossings and pass through a distinctive tunnel before reaching the Wrangler Aid Station. The route continues along the canyon floor, showcasing Utah's fall foliage, before ascending to the high point on the Rim Trail. After reaching the turnaround at Granite Park Aid Station, runners retrace their steps back to the finish with a net descent.
The terrain is considered beginner-friendly for trail running, with well-maintained surfaces and clear marking using pink flags, ribbons, and signs. Four aid stations are strategically placed every 2.5-4 miles, each equipped with restroom facilities and comprehensive nutrition support.
Elevation Profile
Course Map
Route shown is approximate and for illustration purposes.
Aid Stations
4 stations along the course
Aid Station 1
water, electrolyte, honey stinger gels, honey stinger waffles, fruit
Has bathroom facilities
Wrangler Aid Station
water, electrolyte, honey stinger gels, honey stinger waffles, fruit
Has bathroom facilities, located after tunnel passage
Granite Park Aid Station
water, electrolyte, honey stinger gels, honey stinger waffles, fruit
Turnaround point, has bathroom facilities
Aid Station 3 (return)
water, electrolyte, honey stinger gels, honey stinger waffles, fruit
Has bathroom facilities, same as Wrangler on return
Practical Info
Mid-October in Utah typically brings crisp autumn conditions with morning temperatures in the 40s-50s°F, warming to comfortable running weather.
SLC - Salt Lake City International Airport
Sandy is located in the Salt Lake City metropolitan area with numerous hotel options. The race organizer recommends arriving 45 minutes before the 7:15 AM start time.
Best For
Notable Features
This race stands out for its beginner-friendly approach to trail running, featuring excellent wood-chipped surfaces that feel comfortable underfoot. The intimate field size of 300 or fewer runners creates a community atmosphere, while the no-cutoff policy ensures every participant can complete their goal. The October timing showcases Utah's spectacular fall colors, particularly in the canyon sections where runners pass through tunnels and over scenic bridges.