Grey Rock Trail Runs

Yakima, United States • 11 Jul 2026

Grey Rock Trail Runs

Grey Rock Trail Runs is a series of summer trail races near Yakima, Washington, held at Tree Phones Campground in the Ahtanum State Forest. The event is in its 16th year and takes place in the Cascade Mountains of south central Washington.

The course is an out and back single track route with a mix of open ridges and forested stretches. Trails include rocky sections and smoother forest paths. The 25K course has more than 3500 ft of elevation gain. The higher mountain elevation tends to keep temperatures lower, but it can still become very warm by mid day. The 12K follows the same route as the 25K for a shorter distance.

There are aid stations with water, electrolyte drinks, power bars and gels at the 25K turnaround. Participants are advised to carry water and snacks. Day of race check in is at Tree Phones Campground and a short pre-race briefing is provided. Parking requires a Washington State Discover Pass for all vehicles.

Awards are given as medals to the top three men and top three women in each event. A custom short sleeve technical T-shirt is available for purchase for $30. Light refreshments are provided after the race. The event policy states there are no refunds. Visit the organization's website for the most recent information.

Race information

25 km
25k
12 km
12k
Visit the organization's website for the most recent information.
Trail runs nearby

A 50 kilometer out and back trail race near Ellensburg, WA with about 9,200 feet of elevation change across exposed high desert ridgelines and rocky singletrack. Aid stations are provided and primitive on site camping is available.

A 25K out and back trail race near Ellensburg, WA with roughly 4,700 feet of elevation gain and loss across exposed, rocky singletrack and jeep road ridgelines. Two aid stations are on course and runners must carry at least 32 ounces of wat..

Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.