Tussey Mountainback 100M Ultramarathon


Course Description

The Tussey Mountainback 100 Mile Ultramarathon features a scenic and challenging multi-loop course that takes runners through the picturesque landscapes of Rothrock State Forest in Central Pennsylvania. The course offers a mix of gravel roads, forest service roads, and rolling hills, providing a true test of endurance and resilience.

The100 mile course is new for 2025. The first 50 of the 100 miles will be four loops of a 20 km course and then the full 50 mile course. See the 20 km map and leg information below. From the start, racers will run the 20 km course clockwise and return to the start line. There will be an overnight aid station at the start line (number 12).

See the leg descriptions on the 50 Mile page of this site for the distances and elevation profiles for the second 50 miles.


race Overview


20.44 Km map

(Click map to enlarge)

20.44 km loop description

The 20.44 kilometer loop begins and ends at the same start line as the other races. On each lap, you will enjoy 400 meters of climbing and descending as you go around the mountain. There are 3 aid stations on the course, about every 5 kilometers and one at the start line.

See the leg descriptions on the 50 Mile page of this site for the distances and elevation profiles for the second 50 miles.


leg 1

Start to North Meadows Road

leg 1 length: 5.86 km

Running Total 5.86 km

Difficulty: Moderate

Topography:

The 20k begins with a 5.9 km run up Bear Meadows Road, which is paved for the majority of its length. Be mindful of traffic and critters. At the gated intersection with North Meadows Road, runners will find their initial aid station. This station, number eleven, is the same one used by the 50 mile and 50 kilometer runners. At this station, runners will turn right onto North Meadows road.

Steady 160 m climb

leg 2

north meadows rd to aid station 12

Leg 2 length: 4.94 km

Running Total 10.8 km

Difficulty: moderate

Topography:

Leg 2 begins at the North Meadows aid station. Enter the gate to North Meadows Road and continue until it meets Gettis Ridge Road at the top. Turn to the right and follow the road through the gate onto Bear Gap Road. The aid station is at the gate. Note that North Meadows Road is closed to all traffic. It is almost a 10 mile drive between the ends of the road, but only a 3 mile run.

Steady 170 m climb

leg 3

Aid Station 12 to Aid Station One

Leg 3 length: 4.4 km

Running Total 15.2 km

Difficulty: moderate

Topography:

Leaving Aid Station 12, turn right and start along Bear Gap Road. You might enjoy the steep descent, or your quads might complain a wee bit. In any event, turn right at the bottom and join Laurel Run Road. Fear not, you are nearly at aid station number one.

Steep descent (150 m) and a climb (70 m)

leg 4

Aid Station One to finish

Leg 4 length: 5.3 km

Running Total 20.5 km

Difficulty: easy

Topography:

This is your last leg of the loop. From the top of the hill at the aid station, simply follow Laurel Run Road downhill on the well trodden track. Just after the bridge, turn left onto paved Bear Meadows Road and follow it back to the start line.

Steady descent for 200 m


50m map

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50m loop description

There are 12 legs in the 50M loop. See all 12 leg descriptions on the 50 Mile page of this site to view the distances and elevation profiles for the second 50 miles.