Harrisburg, PA: Sunset Rocks via Appalachian Trail

Hop on the Appalachian Trail at its halfway point and navigate creek crossings and a steep boulder scramble to above-the-trees vistas of Michaux State Forest.

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Beginning at the Pine Grove Furnace State Park general store (site of the Appalachian Trail halfway point—and the half-gallon ice cream challenge for thru-hikers), this 7.4-mile lollipop sets off on the AT to explore forested trails, boulder scrambles, and mountain vistas of Michaux State Forest. After crossing Tom’s Run creek for the first time on a narrow log bridge (at mile 1.7), the AT joins up with forest roads for one mile before heading back into the woods and looping south to Tom’s Run shelter area (mile 4).
Just past the shelters, the route turns off the AT (which continues south), heading east on the signed Sunset Rocks Trail. After a southward jog on the Michaux forest road, the trail turns up the spine of Little Rocky Ridge, following blue blazes that hop intermittently from trees to boulders. This strenuous stretch of trail features several boulder scrambles, affording a handful of above-the-trees vistas along the way—although the climb is not technical, it’s not well-suited for dogs or small children. The payoff vista at the Sunset Rocks summit is just past the turn-off towards the AT. Enjoy the South Mountain views before managing the steep descent back to the AT and ice cream rewards at the general store—you might not be thru-hiking the AT, but you’ve earned it nonetheless.
-Mapped by Miranda Crotsley


Trail Facts

  • Distance: 11.9



Location: 40.0324472, -77.306509

Start your trek on a gravel stretch of the Appalachian Trail that leaves from the parking area of the general store at Pine Grove Furnace State Park. Halfway between Georgia and Maine, hikers often stop here to gorge on ice cream.


Location: 40.0311558, -77.3120261

Cross PA 233.


Location: 40.0344411, -77.3200929

Trail turns down the hill and becomes a little rockier. On the return trip, this is one of the final climbs.


Location: 40.0376735, -77.3231345

Stay left (on the return trip, bear right. Just ahead, the trail wanders near a dirt forest road.


Location: 40.038573, -77.3258811

Passing the Sunset Rocks Trail, stay right at this 3-way intersection on the AT.


Location: 40.0386715, -77.3260045

Cross the bridge over Tom’s Run, continue stay straight a short distance, and then bear left to join the forest road. This route continues on forest road for the next mile or so.


Location: 40.0385401, -77.3276246

A small sign directs to a short detour left of the trail and over the hill to a nearby spring (and nice views of Tom’s Run).


Location: 40.0380599, -77.3296464

Continue straight where the forest road splits off to the right.


Location: 40.037464, -77.3376882

The road/trail cuts through a parking area here, and just after, this route turns right, heading uphill on Michaux Road. There are remnants of a Civilian Conservation Corps camp in this area, and there was once a WWII detention facility here as well.


Location: 40.0406265, -77.3416793

Turn left back into the woods to continue on the AT. There is a small parking area for a few cars. From here the trail is flat, wide, and smooth until the Tom’s Run Shelter area.


Location: 40.0357719, -77.3569357

In this area, the trail crosses some intermittent streams and springs; you’re likely to get your boots a little wet, especially in the spring and fall.


Location: 40.03394, -77.3569894

Take a break for lunch at the Tom’s Run shelter area; there’s a privy, two shelters, and several picnic tables.


Location: 40.0331678, -77.356292

Turn left onto the Sunset Rocks Trail just after crossing Tom’s Run. Follow the blue blazes along the somewhat rocky and wooded trail. Just ahead, the trail opens up into a nice meadow before ducking back into the woods (on the right).


Location: 40.0339565, -77.3379672

Turn right for a brief southward jog on Michaux Road. The Sunset Rocks Trail continues about 0.3 mile ahead on the left.


Location: 40.0311074, -77.3353937

Turn left heading back into the woods as the route starts heading for the trail’s namesake, Sunset Rocks.


Location: 40.0330942, -77.3323437

At the top of the hill, the trail reveals its first vista through the trees. From here there is considerable scrambling over and around boulders. Exercise caution and good judgment, and keep an eye out for the blue blazes ahead as they begin alternating randomly between trees and rocks.


Location: 40.0338497, -77.3269808

Continue straight to follow blue blazes to true summit ahead. Soak in the views, and then return to this waypoint and head north to begin descending the Sunset Rocks Trail on a very steep path. Continue down to Waypoint 5, then turn right to retrace the AT back to the general store.

The AT Tree

Location: 40.0348765, -77.3205006

This “widow-maker” on the trail almost seems to form an “A” and a “T”.

Tom’s Run Crossing

Location: 40.0386797, -77.3258972

Here the AT crosses Tom’s Run: a beautiful little stream, and a great place to stop and rest.

Edge Habitat

Location: 40.0373737, -77.3354673

While the forest road stretch isn’t the most scenic, it does make for some exceptional habitat, home to several bird species: chickadees, cedar waxwings, flickers, just to name a few.

Tom’s Run Shelter

Location: 40.03394, -77.3568821

Meadow on Sunset Rocks Trail

Location: 40.0336443, -77.3547256


Location: 40.0359608, -77.345767

In the fall of 2008, this footbridge had some maintenance issues. It’s not much of a problem, unless there is a lot of spring melt-off.

Roadside Critter

Location: 40.0320096, -77.3369586

Rocky Trail

Location: 40.0311059, -77.3353064

Forest Views

Location: 40.0330939, -77.3322487

Intermittent views through the trees reveal vistas of South Mountain.

Steep Trail

Location: 40.0335375, -77.3307681

Watch for blazes on both trees and boulders on the rocky climb of Sunset Rocks.

Nearing the Summit

Location: 40.0340058, -77.3282146

Amazing treetop views of Michaux State Forest.

Bouldering Spot

Location: 40.0339893, -77.3272705

Opportunities for sensible boulder scrambling abound on the climb up Sunset Rocks.


Location: 40.0350819, -77.3269486

An incredible set of holes drilled by pileated woodpeckers.