AMBLEWAY Wildest hikes

Upton State Forest

Mammoth Rock–Grouse Trail, 6 sights

2 mi · ▲ 110 ft · 43 min

Mammoth Rock–Grouse Trail, 6 sights is a 2-mile out-and-back in Upton State Forest near Upton, MA. The route reaches Mammoth Rock at the turnaround, 1.2 miles in. It is mostly level, with 110 ft of elevation gain. It scores 29/100 on the Ambleway Wildness scale: green fringe.

Elevation

0 mi407 – 492 ft2.1 mi

Getting there

Trailhead: Park Road 42.20944, -71.60576
Nearest town Upton, MA
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Directions

AMBLEWAYwww.ambleway.com

Mammoth Rock–Grouse Trail, 6 sights

2 mi · ▲ 110 ft · 43 min

Elevation 407–492 ft

Out & Back · Upton State Forest

Trailhead: Park Road · 42.20944, -71.60576

Weather Sep 20: sunrise 6:32 AM · sunset 6:49 PM

Parking lot at the trailhead

  1. Start on Park Road, heading E.
  2. 0.1 miTurn left onto Loop Road, heading E.
  3. 250 ftTurn left onto Swamp Trail, heading N.
  4. 0.4 miBear right onto Mammoth Rock Trail, heading E.
  5. 0.6 miPass Mammoth Rock.
  6. 0.3 miContinue straight onto Grouse Trail, heading SW.
  7. 50 ftSharp right onto Loop Road, heading SW.
  8. 0.5 miTurn right onto Park Road, heading W.
  9. 0.1 miArrive back at the trailhead.

Each distance is the walk from the previous step. Tap a step for a map of its junction.

Trail map, photos and weather for this hike: www.ambleway.com/hikes/mammoth-rock-out-back-4-km-349e

Trail surface

33% dirt67% unspecified

Weather

Sunrise 6:32 AMSunset 6:49 PM

Good to know

  • Parking lot at the trailhead

Other ways to reach this destination

More from Park Road Trailhead

Hikes near Upton, Massachusetts