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Acadia National Park - Perpendicular and Razorback Loop

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This trail system is currently PARTIALLY OPEN. See Trail Alerts tab for details.
This trail system is currently PARTIALLY OPEN. See Trail Alerts tab for details.
The Perpendicular Razorback Loop features a steep hike up a historic trail to the summit of Mansell Mountain. This loop is on the west side or "quiet side" of the island so offers a hike with the potential for more solitude.
Trail Activity
2.7 miles, Network
Southwest Harbor
Dirt/Forest Floor
Not Permitted



This is a busy trail system, especially on weekends between 9AM-4PM. Consider visiting outside of peak periods. Use Maine Trail Finder to identify other nearby trails. If the parking lot is full when you arrive, please choose another trail. Be considerate of your fellow trail enthusiasts - pass at safe distances, wear masks, and move on from viewpoints if others are waiting.

The Perpendicular Razorback Loop begins with a short walk (0.2 miles) along the scenic Long Pond Trail before reaching the junction of the Perpendicular Trail. Over 300 cut granite steps, a few iron rungs and a small ladder allows hikers to ascend steep slope of Mansell Mountain. There are a few views of Long Pond between the trees. Just before the trail turns away from the face there is a short, out and back, spur trail to an overlook of Beech Mountain, Long Pond and the outlying islands. The trail levels off in the woods before reaching the summit of Mansell Mountain at 949 feet. There are no views from the summit.

The Perpendicular Trail descends past the junction for the Mansell Mountain Trail before ending at the Razorback Trail. Turn left (south) on the Razorback Trail. The trail provides great views as it steeply descends along the ridge before entering the forest and ending at the Gilley Trail. A left leads to the Cold Brook Trail which returns to the Long Pond Trail and parking area.

Other Information

The Perpendicular Trail was built by the Civilian Conservation Corps (CCC) in 1933-34. Where the trail crossed the talus slope, flat boulders were laid end-to-end to form an easier walking path. Rock steps and ramps were also built by the CCC. To make the newly placed stones blend more quickly with their natural surroundings, the crew covered the stones with local moss and planted ferns along the edges.

Dogs are not allowed on this trail due to the ladder and iron rungs.

Geocaching is prohibited within Acadia National Park; however, the park does sponsor an EarthCache Program for those seeking a virtual treasure hunt!

Trail Manager

Visit Acadia National Park online for more information or contact:

National Park Service, Acadia National Park
PO Box 177
Bar Harbor, ME 04609
Phone: (207) 288-3338

Nearby Events


Trail Tips

Minimize Campfire Impacts
Use only small pieces of dead and down wood for campfires and let them burn down to ash. Please extinguish your campfire before leaving.

Trailhead Information

After reaching Mount Desert Island on State Route 3, stay to the right to follow State Route 102 toward the towns of Somesville and Southwest Harbor. Just after reaching Southwest Harbor, turn right on Seal Cove Road, then right on Long Pond Road to reach the south end of Long Pond where parking is available. The Long Pond Trail begins on the opposite side of the municipal water pumping station.

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