AMBLEWAY Wildest hikes

Lynn Woods Reservation

Breeds Pond–Union Rock, 5 sights

3.5 mi · ▲ 286 ft · 1 hr 19 min

Breeds Pond–Union Rock, 5 sights is a 3.5-mile out-and-back in Lynn Woods Reservation near Merrimac Terrace, MA. The route passes Breeds Pond, Dungeon Rock and Union Rock. It climbs 286 ft, with sections as steep as 18% grade. It scores 0/100 on the Ambleway Wildness scale: paved and peopled.

Elevation

0 mi112 – 210 ft · steepest grade: 18%3.9 mi

Getting there

Trailhead: Pennybrook Road 42.47862, -70.98946
Nearest town Merrimac Terrace, MA
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Directions

AMBLEWAYwww.ambleway.com

Breeds Pond–Union Rock, 5 sights

3.5 mi · ▲ 286 ft · 1 hr 19 min

Elevation 113–211 ft

Out & Back · Lynn Woods Reservation

Trailhead: Pennybrook Road · 42.47862, -70.98946

Weather Aug 4: Clear, high 81°F / low 62° · precip 0% · wind 7 mph · sunrise 5:40 AM · sunset 8:02 PM

Transit-accessible: Walnut St opp Sterling St stop 523 m from the trailhead · Toilets at the trailhead

  1. Start at the trailhead, heading NW.
  2. 50 ftTurn right onto Nick's Path, heading NW.
  3. 150 ftContinue straight onto Pennybrook Road, heading NW.
  4. 150 ftSharp right onto Waycross Road, heading NE.
  5. 0.4 miTurn left, heading E.
  6. 50 ftPass Breeds Pond.
  7. 500 ftPass Dungeon Rock.
  8. 250 ftSharp left onto Dungeon Road, heading NW.
  9. 50 ftPass Union Rock.
  10. 300 ftTurn right, heading W.
  11. 0.7 miTurn left, heading NW.
  12. 150 ftTurn left onto Undercliff Path, heading NW.
  13. 0.5 miReach Breeds Pond, then turn around and head back the way you came.
  14. 0.5 miTurn right, heading NW.
  15. 150 ftTurn right onto Dungeon Road, heading NW.
  16. 0.7 miTurn right, heading E.
  17. 350 ftSharp right, heading E.
  18. 0.1 miTurn right onto Waycross Road, heading E.
  19. 0.4 miSharp left onto Pennybrook Road, heading SW.
  20. 150 ftContinue straight onto Nick's Path, heading SW.
  21. 100 ftTurn left, heading SW.
  22. 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 map, photos and weather for this hike: www.ambleway.com/hikes/lynn-woods-reservation-viewpoint-out-back-4-km-19df

Trail surface

41% gravel25% dirt1% rock33% unspecified

Weather

ClearTemperature 81°F62°
Precip0%Wind7 mphUV7Humidity82%
Rained 2.2″ yesterday (2.5″ over the last week) · trails may be muddy
Hourly temperature
85°60°
Sunrise 5:40 AM12 AM3 AM9 AM12 PM3 PM6 PMSunset 8:02 PM
Wed 81°63°
Thu 91°72° 22%
Fri 97°74° 25%
Sat 94°70° 44%
Sun 95°68°
Mon 96°74°

Good to know

  • Transit-accessible: Walnut St opp Sterling St stop 523 m from the trailhead
  • Toilets at the trailhead

Other ways to reach this destination

More from Pennybrook Road Trailhead

Hikes near Merrimac Terrace, Massachusetts