Free. You can start with nothing.
Start at Asaph, one full 50-mile lap (out-and-back to Wellsboro Junction, then out-and-back to Blackwell), then a second out-and-back to Wellsboro Junction to complete roughly 100 km (~62 miles). A 100-mile relay (teams of up to 12, exchanging only at aid stations, no exchange permitted at Tiadaghton) starts alongside the 100K.
Same flat crushed-limestone rail-trail as the 100 Mile course. Many 100K finishers finish after dark. Relay teams (100-mile relay, up to 12 runners) start with the 100K wave; exchanges only at aid stations, none permitted at Tiadaghton.
An out-and-back ultra on the Pine Creek Rail Trail through the Pine Creek Gorge (the "Grand Canyon of Pennsylvania") near Wellsboro, PA, run concurrently at four distances (100 Mile, 100K, 50 Mile, Marathon) from a shared start/finish at Asaph. The trail is finely crushed limestone, 20 feet wide, closed to motor vehicles, and loses only about 900 feet over 63 miles (a 2% grade) -- flat enough that the race markets itself as beginner-friendly and a common choice for a first 100-miler.
First run at least by 2011 (UltraSignup results are on file back to 2011). The 100-mile course was originally longer: a 2013 crew report describes the out-and-back continuing south past Blackwell through Slate Run and Cedar Run aid stations to a turnaround near the village of Cammal (Blackwell was passed at mile 79.1, not the turnaround). By 2016 (per an archived course-map image) and continuing through the current 2026 listing, the course has been shortened to turn around AT Blackwell, with the Slate Run/Cedar Run/Cammal stations no longer part of the race.
| Mile | Station | Cutoff | Crew access | Bag | Pacer | Med | To next |
|---|---|---|---|---|---|---|---|
| 0.00 | Asaph (USGS Building) | ? | ● | ● | ? | ? | 6.00 |
| 6.00 | Wellsboro Junction | ? | ● | ? | ● | ? | 6.00 |
| 12.00 | Asaph (USGS Building) | ? | ● | ○ | ? | ? | 3.00 |
| 15.00 | Darling Run | ? | ● | ? | ● | ? | 8.00 |
| 23.00 |
Tiadaghton
None · no cell service
|
? | ○ | ○ | ? | ? | 7.50 |
| 30.50 | Blackwell | ? | ● | ● | ● | ? | 7.50 |
| 38.00 |
Tiadaghton
None · no cell service
|
? | ○ | ○ | ? | ? | 8.00 |
| 46.00 | Darling Run | ? | ● | ? | ● | ? | 4.00 |
| 50.00 | Asaph (USGS Building) | ? | ● | ○ | ? | ? | 6.00 |
| 56.00 | Wellsboro Junction | ? | ● | ? | ● | ? | 6.10 |
| 62.10 | Asaph (USGS Building) | ? | ● | ? | ? | ? | ? |
Nobody has been out there with a camera or a microphone yet. A gap means nobody has found it, not that it is not out there. Seen a course preview or a film of this one? Send us the link.
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