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 Grassy Pond before reaching Stony Brook Reservoir at the turnaround, 2.9 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 ft6.2 mi

Getting there

Trailhead: Grassy Pond Lifecourse 42.60231, -71.43475
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: Grassy Pond Lifecourse · 42.60231, -71.43475

Weather Aug 4: Clear, high 82°F / low 61° · precip 0% · wind 7 mph · sunrise 5:41 AM · sunset 8:04 PM

Parking lot at the trailhead

  1. Start at the trailhead, heading NE.
  2. 50 ftPass Grassy Pond.
  3. 50 ftTurn left, heading N.
  4. 1.2 miTurn right onto Acker trail, heading NE.
  5. 1.7 miPass Stony Brook Reservoir.
  6. 350 ftReach Grassy Pond, then turn around and head back the way you came.
  7. 1.7 miTurn left, heading NW.
  8. 1.2 miTurn right, heading S.
  9. 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

50% dirt50% unspecified

Weather

ClearTemperature 82°F61°
Precip0%Wind7 mphUV7Humidity80%
Rained 0.5″ yesterday (0.9″ over the last week) · trails may be muddy
Hourly temperature
85°60°
Sunrise 5:41 AM12 AM3 AM9 AM12 PM3 PM6 PMSunset 8:04 PM
Wed 85°62°
Thu 87°70° 29%
Fri 95°71° 31%
Sat 94°68° 34%
Sun 95°68°
Mon 92°72°

Sunset

The best sunset spot on this hike is 0.1 mi in (~2 min). Leave by 7:42 PM for the 8:04 PM sunset. Back at your car by 8:20 PM — 15 min before dark.

More sunset hikes nearby

Good to know

  • Parking lot at the trailhead

Other ways to reach this destination

More from Grassy Pond Lifecourse Trailhead