Perpendicular Trail

Why this trail

Perpendicular is Acadia’s west‑side stair workout: a steep, historic stone staircase climbing the flank of Mansell Mountain above Long Pond. It’s beautiful, quieter than the park’s east‑side crowd‑pleasers, and rewards you with a big lookout over Long Pond, Beech Mountain, Southwest Harbor, and the Cranberry Isles.

Distance and how to hike it

The classic outing is a loop of about 2.7 miles total using Perpendicular up and Razorback (or Mansell Mountain/Great Notch) down. The Perpendicular segment itself is roughly 0.9–1.0 mile one way and does nearly all the ~900–1,000 feet of climbing. Expect sustained grade—think nature’s stairmaster.

What you’ll see and feel

This path is defined by masterful 1930s stonework: tight switchbacks and hundreds of granite steps set into mossy forest, with occasional talus and bedrock. Near the top, a signed overlook delivers the money view across Long Pond to the ocean-dotted horizon. Mansell’s high point is mostly wooded, so savor the lookout when you reach it. Keep an eye out for falcons working the nearby cliffs.

Difficulty and safety

It’s strenuous because it’s relentlessly steep, but there’s no cliff-edge exposure and no iron-rung sections—just stairs and rocky footpath. The stone can be slick when wet and downright icy in winter; traction is essential in cold conditions. Many hikers prefer to descend via Razorback rather than pounding knees straight back down Perpendicular; the Mansell Mountain Trail descent is rugged and can be punishing.

Best time to go

Late spring through fall is prime. You’ll find cooler shade on the climb, vivid foliage in autumn, and far fewer people than on the park’s famous iron-rung routes. Winter travel is possible but only with proper traction when ice forms on the steps. For parking and solitude, start early.

Tips

• Park at the Long Pond Trailhead (behind the water pumping station). The lot is small (about 10 cars), so arrive early.
• Trekking poles help both up and down the stone steps.
• Do the loop clockwise: up Perpendicular for the best workout and views, down Razorback for a kinder descent.