One loop of 103.5 miles around the Pine Creek watershed, starting and finishing at Little Pine State Park. The route links the Mid State Trail, the Black Forest Trail, the West Rim Trail, the Donut Hole Trail, the T-Squared Trail, the Long Branch Trail and the Tiadaghton Trail, with 21,000 feet of climbing and the same again of descent. Runners get 36 hours.
The race calls it graduate-level trail running. The climbs run 900 to 1,200 feet and the descents match them, and the race puts the course at 98% single and double track. Plotaroute splits the grade as 6.3 miles flat, 49.7 miles uphill and 46.19 miles downhill. The longest climb is 2.4 miles from mile 26.8 on Browns Run Trail; the longest descent is 1.9 miles from mile 5.5 on the Mid State Trail; the steepest pitch is 40% above Dam Run Road at mile 4.2.
Eastern States 100 is a 103.5 mile loop around the Pine Creek watershed in the Pennsylvania Wilds, starting and finishing at Little Pine State Park in Waterville. It strings together the Mid State Trail, the Black Forest Trail and the West Rim Trail, with 21,000 feet of climbing, rock underfoot and August heat and humidity. Runners get 36 hours. Since 2014 about half the field has finished, and in hot years it drops into the thirties.
The first Eastern States 100 was run in 2014. It has been held ten times through 2026; the 2018, 2020 and 2024 editions were cancelled. The aid stations have moved over the years. Halfway House at the PA-44 crossing gave way to Big Trail in 2021, and Algerine and Long Branch were both replaced by Cedar Run in 2023. In 2026 a woman won the race outright for the first time, and it was the first sub-24 hour women's finish in the race's history.
| Mile | Station | Cutoff | Crew access | Bag | Pacer | Med | To next |
|---|---|---|---|---|---|---|---|
| 0.00 | Little Pine State Park | ? | ● | ? | ? | ? | 5.80 |
| 5.80 | Ramsey Road | ? | · | · | · | ? | 5.70 |
| 11.50 | Bonnell Flats | ? | · | · | · | ? | 6.70 |
| 18.20 | Lower Pine Bottom | 11:30am | ● | ● | · | ? | 8.00 |
| 26.20 | Browns Run | ? | · | · | · | ? | 5.80 |
| 32.00 | Happy Dutchman | 4:30pm | · | · | · | ? | 6.90 |
| 38.90 | Ritchie Road | ? | · | · | · | ? | 4.70 |
| 43.60 | Hyner Run | 8:15pm | ● | ● | ● | ? | 8.00 |
| 51.60 | Dry Run | ? | · | · | · | ? | 5.40 |
| 57.00 | Big Trail | 12:45am | · | · | · | ? | 6.30 |
| 63.30 | Tomb Flats | 3:00am | ● | ● | ● | ? | 9.80 |
| 73.10 | Cedar Run | 6:30am | · | · | · | ? | 7.80 |
| 80.90 | Blackwell | 9:15am | ● | ● | ● | ? | 4.50 |
| 85.40 | Sky Top | 10:45am | · | · | · | ? | 8.10 |
| 93.50 | Barrens | 1:30pm | · | ● | · | ? | 6.20 |
| 99.70 | Hackett | 3:45pm | · | · | · | ? | 3.80 |
| 103.50 | Little Pine State Park | 5:00pm | ● | ? | ? | ? | ? |
From the Little Pine State Park Day Use Area, turn left onto Little Pine Creek Rd. Follow Little Pine Creek Rd for 4.3 miles, then turn right onto PA-44. Follow PA-44 for 1 mile, then turn left into the PA DCNR Bureau of Forestry. Aid station is at the end of the PA DCNR Bureau of Forestry building parking lot.
Parking. Once the parking lot is filled, park along the entrance drive facing the exit. Do not overpark the parking lot in front of the DCNR building. There are no vehicle restrictions at Lower Pine Bottom.
easternstates100.comReturn to Bureau of Forestry entrance, then turn left onto PA-44 for 0.5 miles. Turn slight left to stay on PA-44 and follow for 5.3 miles. Turn right to stay on PA-44 and follow for 5.2 miles. Turn left on Hyner Mountain Rd and follow for 5.0 miles. Turn right into Hyner Run State Park and the parking lots will be on your right.
Parking. Park in the lots on the right inside Hyner Run State Park. Runners are travelling down the road into the aid station, so stay alert on the approach. There are no vehicle restrictions at Hyner Run.
easternstates100.comReturn to the state park entrance and turn left onto Hyner Mountain Rd. Follow Hyner Mountain Rd for 5.0 miles. Turn right onto PA-44 and follow for 5.2 miles. Turn left to stay on PA-44 and continue for 5.3 miles. Take a sharp left onto PA-414 and follow for 12.0 miles. Turn left onto Yoder Rd and park at the Tomb Flats Campground.
Parking. Park at the Tomb Flats Campground off Yoder Rd. There are no vehicle restrictions at Tomb Flats.
easternstates100.comFrom the Tomb Flats Campground parking lot, turn left onto PA-414. Follow PA-414 for 11.9 miles, then right into the Robert McCullough Jr. Parking area.
Parking. Parking is very limited at the Robert McCullough Jr. lot. Only park on the right side of the road if the lot is full. No RVs are allowed at Blackwell.
easternstates100.comFrom the Pine Creek Rail Trail parking lot, turn right or northbound onto PA-414. Follow PA-414 North for 5.3 miles, then a sharp right onto PA-287 South. PA-287 South for 11.2 miles, then turn right onto Little Pine Creek Road in the small village of English Center. Continue on Little Pine Creek Road for 0.5 miles, turn left over the bridge and continue on Little Pine Creek Road. Follow Little Pine Creek Road for 6.9 miles to Little Pine State Park. The parking lot for the Day Use area is on your left.
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