Rocky Mountain Half Marathon

JUL-AUG
31-1
2026
A paved, high elevation loop in Estes Park around Lake Estes offering a half marathon, a 5K and an Elk Double combining both races. The event is cup free with multiple aid stations and a four hour time limit for the half marathon.
31-1 Jul-Aug 2026
Half Marathon 5 kilometers

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Rocky Mountain Half Marathon & 5K

The event takes place in Estes Park, Colorado, at Stanley Park near Lake Estes, just outside Rocky Mountain National Park. It offers a paved road loop course that runs around the lake and through nearby neighborhood roads. The half marathon course is counterclockwise around the lake, includes a steady uphill section on Dry Gulch, rolling hills on Devil's Gulch, and a flatter return along MacGregor and Steamer parkways.

Key course facts:

  • Paved road loop
  • High elevation with a maximum elevation of 7,906 ft
  • Elevation gain about 780 ft
  • Time limit of four hours for the half marathon
  • Five aid stations; medic located at the mile 7 aid station

Race formats:

  • Half Marathon (13.1 miles)
  • 5K around Lake Estes
  • Elk Double combining the 5K and the half marathon using the same bib

Logistics note: bib pickup and the race expo are held at the Stanley Park ball fields. The event follows a cup free policy on course; water and electrolyte drinks are available but participants should bring a reusable cup or hydration device. Spectators are welcome at the finish area and parking is provided in designated lots near the fairgrounds. Visit the organization's website for the most recent information.

Half Marathon
Half Marathon
5 km
Elk Double