Trail Overview

Mount Greylock via Appalachian Trail — Massachusetts is a 5.9 miles (one-way) / 2 miles (from road)-mile out-and-back trail in Mount Greylock State Reservation, Adams, MA, Massachusetts, gaining 2,700 ft (full AT approach) feet on a Dirt, rock, root surface as an out-and-back route. Typical completion time: 4–6 hours (full AT approach).

Trail at a Glance

  • Distance: 5.9 miles (one-way) / 2 miles (from road) miles · Out-and-back
  • Elevation Gain: 2,700 ft (full AT approach) feet
  • Difficulty: Hard
  • Surface: Dirt, rock, root
  • Season: May–October
  • Time: 4–6 hours (full AT approach)
  • Fee: Free
  • Dogs: Yes (leash)
  • Permit: None

What to Expect

The trail begins in Mount Greylock State Reservation, Adams, MA and showcases the natural character of Massachusetts. The Dirt, rock, root surface is manageable for most hikers, and the route is clearly marked throughout. At Hard difficulty, this trail rewards the effort with scenery and experiences that define outdoor recreation in Massachusetts.

The 2,700 ft (full AT approach)-foot elevation change shapes the experience. The ascent builds steadily before the turnaround or loop completion returns you to the trailhead. Stay alert for wildlife and changing weather conditions common to Massachusetts trails.

Planning Your Visit

No entrance fee. Dogs not permitted. Permit required: None. Arrive early on weekends to secure parking. Bring at least 2 liters of water per person and energy-dense snacks. Layered clothing is essential for mountain and high-elevation environments.

What to Pack

  • Water: 2+ liters per person
  • Navigation: Download the GPX file before heading out
  • Sun protection: Sunscreen, hat, sunglasses
  • Layers: Wind layer and warm mid-layer
  • First aid: Basic kit with blister care

Getting There

The trailhead for Mount Greylock via Appalachian Trail — Massachusetts is located in Mount Greylock State Reservation, Adams, MA, Massachusetts. Confirm current conditions with the managing agency before your visit. Download the GPX file for navigation.

Leave No Trace

Stay on the designated trail, pack out all waste including food scraps and pet waste, keep dogs leashed, and respect wildlife by maintaining distance. Your care preserves these trails for future visitors.

Download the GPX File

Free GPX download available on this page. Load it into Garmin, Gaia GPS, AllTrails, or any compatible navigation app before leaving cell service.