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Conquer the Circumnavigation of the Lost and Bewildered River in the Wilds of Pennsylvania


Important Course Update: AS2 Ramsey is being relocated and renamed → AS2 Bonnell Flats
We have an important change to share regarding Aid Station 2. AS2 Ramsey is being relocated and renamed → AS2 Bonnell Flats (Mile 11.6). At the request of the Pennsylvania Department of Conservation and Natural Resources and Cummings Township, the aid station will move across the bridge and 0.5 miles down the Pine Creek Rail Trail to Bonnell Flats Campground . Why the Change? Safety. This decision comes down to reducing congestion and improving safety for runners, volunteers
Ben Mazur
Mar 182 min read


New Members of the Eastern States Trail-Endurance Alliance Board of Directors Announced
Please join us in welcoming John Dennis Shaffer and Janice Hartkorn as new members of the Eastern States Trail-Endurance Alliance Board of Directors! John, a Pine Creek Valley native, longtime trail runner, Eastern States 100 finisher, PA Trail Dogs member, and race director of the Call of the Wilds 50K, brings deep roots in the PA Wilds and a passion for stewardship and community. Janice found running when she needed it most and has since become a dedicated ultrarunner, vo
Ben Mazur
Dec 31, 20251 min read


Crews No Longer Permitted at AS14 – Barrens
Effective 2026, crews will no longer be permitted at AS14 Barrens. Long Live the Barrens. This decision was not made lightly, but it has become clear that we need to restrict crew access at this aid station. Why this change is necessary: Safety & access: Barrens is one of the most remote aid stations on the Eastern States course. The access road is dirt, narrow, and deeply rutted, with limited pull-off space. There simply is not enough room to safely accommodate the volume
Ben Mazur
Dec 16, 20252 min read


For Giving Tuesday, We Give Back.
At Eastern States Trail-Endurance Alliance (ESTEA)—home of Eastern States 100, SHEastern States, Ironstone 100K, and the Eagleton Trail Challenge—we’re proud to be a local, all-volunteer, grassroots organization. Everything we do is built on stewardship: for our trails, for our trailrunners, and for the communities that support and sustain us. One of our core missions is to strengthen unity and cooperation among trailrunners, fellow users of public lands, and the towns and or
Ben Mazur
Dec 2, 20252 min read


Aid Station 3 Lower Pine Bottom Map
At Eastern States, we’re always working to improve the experience for everyone involved—runners, volunteers, crews, spectators, and the land managers who make this race possible. With our participant cap increasing, we’re seeing more crews and more people at key points along the course. Aid Station 3 – Lower Pine Bottom, the first crew-accessible aid station, has become a major gathering point for checking in on runners. To support this growth, we’re rolling out several impro
Ben Mazur
Nov 26, 20251 min read


2026 QUALIFICATION STANDARD
The Eastern States 100 is not an entry-level ultramarathon. The course terrain, elevation gain, and weather conditions present unique...
Ben Mazur
Aug 28, 20252 min read


Congratulations to the 2025 Pennsylvania Triple Crown finishers!
The varnish is dry—each award is as unique as every finisher. Each one is a mixed-media work of art handcrafted by Christopher Esh of The...
Ben Mazur
Aug 22, 20251 min read


Ben Mazur
Aug 1, 20250 min read
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