Slate Run Trail Race
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About the race
The Slate Run Trail Race is a trail running event in Slate Run, PA, organized by PA Trail Dogs. It offers two course options.
- 25K
- Half Marathon
The routes run through the remote, rugged mountains of Tiadaghton State Forest and use sections of the Black Forest Trail, including the Algerine Wild Area and Red Run. The course features technical single track, multiple stream crossings, and extended views.
Both the 25K and half marathon follow the same trail for the first nine miles. At the Manor Fork camps, half marathon runners follow the road to the last aid station and then to the finish. 25K runners continue on trail alongside a streambed and then climb Old Supply Trail. Organizers set a cut-off for the nine mile section at 12 noon; runners who miss that cut-off will be directed onto the half marathon course. Half marathon runners must pass the Manor Camp intersection by 1pm or they will be removed from the course. In 2025, all entrants met the 1pm cut-off.
Registration opens December 16, 2026 at 8:00 PM ET via UltraSignup. Entry is limited to the first 225 runners or hikers, or until May 20, whichever comes first. The event policy states no refunds, no deferrals, no switches, and no bandits. Visit the organization's website for the most recent information.
