Costa Conservation Area

Dino Rock–Bob's Trail, 8 sights

7.6 mi · ▲ 556 ft · 2 hr 49 min

Dino Rock–Bob's Trail, 8 sights is a 7.6-mile out-and-back in Costa Conservation Area near Marsh Corner, MA. The route reaches Dino Rock. It climbs 556 ft, with sections as steep as 18% grade. It scores 48/100 on the Ambleway Wildness scale: green fringe.

Elevation

0 mi131 – 384 ft · steepest grade: 18%8.4 mi

Getting there

Trailhead: Unnamed 42.73772, -71.26038
Nearest town Marsh Corner, MA

Directions

AMBLEWAYwww.ambleway.com

Dino Rock–Bob's Trail, 8 sights

7.6 mi · ▲ 556 ft · 2 hr 49 min

Elevation 131–384 ft

Out & Back · Costa Conservation Area

Trailhead: 42.73772, -71.26038

Weather Aug 4: sunrise 5:40 AM · sunset 8:03 PM

  1. Start at the trailhead, heading S.
  2. 350 ftTurn left, heading S.
  3. 50 ftTurn right, heading S.
  4. 150 ftSharp right, heading SW.
  5. 100 ftBear left onto Steepest, heading SW.
  6. 250 ftTurn right, heading SW.
  7. 50 ftTurn left onto North Loop, heading SW.
  8. 100 ftBear right onto Main Loop, heading SW.
  9. 50 ftPass Dino Rock.
  10. 350 ftTurn right, heading W.
  11. 350 ftTurn right onto Stonepost Trail, heading SW.
  12. 0.3 miBear left onto Moose Pond Water Crossing Winter Trail, heading W.
  13. 0.4 miSharp left onto Bob's Trail, heading SW.
  14. 1.3 miTurn right, heading W.
  15. 50 ftBear left onto Costa Forest Trail, heading W.
  16. 0.2 miTurn right, heading SE.
  17. 50 ftTurn left, heading SE.
  18. 150 ftContinue straight onto Parking Lot Trail, heading S.
  19. 300 ftContinue straight onto Costa Forest Trail, heading S.
  20. 0.3 miContinue straight onto Lower Powerline Trail, heading S.
  21. 0.1 miBear left onto Upper Powerline Trail, heading S.
  22. 0.6 miReach Dino Rock, then turn around and head back the way you came.
  23. 0.6 miBear right onto Lower Powerline Trail, heading SE.
  24. 0.1 miContinue straight onto Costa Forest Trail, heading SE.
  25. 0.4 miContinue straight onto Parking Lot Trail, heading SE.
  26. 400 ftTurn right, heading NE.
  27. 50 ftTurn left onto Costa Forest Trail, heading NE.
  28. 0.2 miBear right, heading NW.
  29. 50 ftTurn left onto Bob's Trail, heading NW.
  30. 1.3 miSharp right onto Moose Pond Water Crossing Winter Trail, heading NE.
  31. 0.4 miBear right onto Moose Pond Land Trail, heading SE.
  32. 0.3 miTurn left onto Main Loop, heading NE.
  33. 0.1 miBear left onto North Loop, heading NE.
  34. 150 ftTurn right, heading NE.
  35. 50 ftTurn left onto Steepest, heading NE.
  36. 250 ftBear right onto Steep Hill Climb Trail, heading SE.
  37. 100 ftSharp left, heading S.
  38. 200 ftTurn left, heading S.
  39. 50 ftTurn right, heading S.
  40. 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

39% dirt61% unspecified

Weather

Sunrise 5:40 AMSunset 8:03 PM

Sunset

The best sunset spot on this hike is 3.7 mi in (~96 min). Leave by 6:07 PM for the 8:03 PM sunset. Back at your car by 9:53 PM, after dark — bring a headlamp.

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