The Tri-State Trail Work Series, hosted by The Running Kind, features races across Pennsylvania, New York, and New Jersey. Rather than a single local course, the series utilizes four distinct trail networks, offering participants a regional circuit instead of a recurring venue.
One event in the series is the Lehigh Valley Trail Work race in Emmaus, Pennsylvania. Registration is managed via UltraSignup, suggesting the series appeals to the trail and ultra-running community familiar with that platform for off-road events.