Grassy Pond & Stony Brook Reservoir via Acker trail

5.9 mi · ▲ 53 ft · 2 hr

Grassy Pond & Stony Brook Reservoir via Acker trail is a 5.9-mile out-and-back near Westford Station, MA. The route passes Stony Brook Reservoir before reaching Grassy Pond at the turnaround, 2.8 miles in. It is mostly level, with 53 ft of elevation gain. It scores 1/100 on the Ambleway Wildness scale: paved and peopled.

Elevation

0 mi144 – 223 ft6.3 mi

Getting there

Trailhead: Unnamed 42.59746, -71.43533
Nearest town Westford Station, MA

Directions

AMBLEWAYwww.ambleway.com

Grassy Pond & Stony Brook Reservoir via Acker trail

5.9 mi · ▲ 53 ft · 2 hr

Elevation 145–222 ft

Out & Back

Trailhead: 42.59746, -71.43533

Weather Aug 4: sunrise 5:41 AM · sunset 8:04 PM

Parking lot at the trailhead

  1. Start at the trailhead, heading E.
  2. 50 ftPass Stony Brook Reservoir.
  3. 50 ftTurn left, heading E.
  4. 0.1 miContinue straight onto Acker trail, heading E.
  5. 1.7 miTurn left, heading NW.
  6. 1 miTurn right, heading SW.
  7. 350 ftBear left, heading SW.
  8. 350 ftBear left, heading NW.
  9. 250 ftTurn left onto Grassy Pond Lifecourse, heading W.
  10. 150 ftReach Grassy Pond, then turn around and head back the way you came.
  11. 150 ftTurn right, heading SW.
  12. 250 ftBear right, heading S.
  13. 350 ftBear right, heading S.
  14. 350 ftTurn left, heading N.
  15. 1 miTurn right onto Acker trail, heading NE.
  16. 1.8 miTurn right, heading SW.
  17. 50 ftArrive back at the trailhead.

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

Trail surface

59% dirt41% unspecified

Weather

Sunrise 5:41 AMSunset 8:04 PM

Sunset

The best sunset spot on this hike is 2.8 mi in (~70 min). Leave by 6:34 PM for the 8:04 PM sunset. Back at your car by 9:27 PM, after dark — bring a headlamp.

More sunset hikes nearby

Good to know

  • Parking lot at the trailhead

Other ways to reach this destination

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