AMBLEWAY Wildest hikes

Harriman State Park

Diamond Mountain–Lake Sebago, 12 sights

14 mi · ▲ 2,322 ft · 5 hr 50 min

Diamond Mountain–Lake Sebago, 12 sights is a 14-mile out-and-back in Harriman State Park near Pomona Heights, NY. The route passes Pine Meadow Lake, Diamond Mountain Tower Viewpoint, Diamond Mountain and 2 more before reaching New Sebago Beach at the turnaround, 6.9 miles in. It climbs 2,322 ft, with sections as steep as 44% grade, and is mostly dirt. It scores 52/100 on the Ambleway Wildness scale: backcountry feel.

Elevation

0 mi404 – 1,240 ft · steepest grade: 44%15.1 mi

Getting there

Trailhead: Unnamed 41.17585, -74.08466
Nearest town Pomona Heights, NY
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Directions

AMBLEWAYwww.ambleway.com

Diamond Mountain–Lake Sebago, 12 sights

14 mi · ▲ 2,322 ft · 5 hr 50 min

Elevation 405–1,241 ft

Out & Back · Harriman State Park

Trailhead: 41.17585, -74.08466

Weather Sep 7: sunrise 6:30 AM · sunset 7:21 PM

Parking lot at the trailhead

  1. Start at the trailhead, heading NW.
  2. 0.1 miBear right onto Pine Meadow Trail, heading N.
  3. 0.2 miTurn left, heading W.
  4. 0.3 miTurn left onto Pine Meadow/Suffern-Bear Mountain Trail, heading NW.
  5. 0.4 miContinue straight onto Pine Meadow Trail, heading W.
  6. 1.3 miPass Pine Meadow Lake.
  7. 50 ftTurn left onto Conklins Crossing Trail, heading SW.
  8. 50 ftTurn right onto Pine Meadow Trail, heading SW.
  9. 500 ftTurn left, heading SW.
  10. 0.7 miPass Diamond Mountain Tower Viewpoint.
  11. 200 ftContinue straight onto Diamond Mountain Tower Trail, heading SW.
  12. 0.1 miPass Diamond Mountain.
  13. 250 ftTurn right onto Hilburn-Torne Sebago/7 Hills Trail, heading NW.
  14. 0.2 miTurn left onto Hilburn-Torne Sebago Trail, heading N.
  15. 0.5 miBear right onto Stony Brook Trail, heading N.
  16. 450 ftTurn left onto Tuxedo-Mount Ivy Trail, heading N.
  17. 350 ftPass Lake Sebago.
  18. 0.8 miBear right onto White Bar/Tuxedo-Mount Ivy Trail, heading W.
  19. 0.1 miContinue straight onto White Bar Trail, heading NW.
  20. 0.3 miBear right onto Hypotenuse Trail, heading NW.
  21. 0.6 miPass Lake Skenonto.
  22. 0.1 miContinue straight onto Triangle Trail, heading N.
  23. 400 ftBear right onto Victory Trail, heading N.
  24. 0.7 miPass New Sebago Beach.
  25. 300 ftSharp left, heading NE.
  26. 0.2 miReach Diamond Mountain, then turn around and head back the way you came.
  27. 0.1 miTurn left, heading NE.
  28. 350 ftSharp right, heading NE.
  29. 0.8 miBear left onto Triangle Trail, heading SW.
  30. 0.2 miContinue straight onto Hypotenuse Trail, heading SW.
  31. 0.6 miBear left onto White Bar Trail, heading W.
  32. 0.3 miContinue straight onto White Bar/Tuxedo-Mount Ivy Trail, heading S.
  33. 0.1 miBear left onto Tuxedo-Mount Ivy Trail, heading S.
  34. 0.9 miTurn right onto Stony Brook Trail, heading S.
  35. 400 ftBear left onto Hilburn-Torne Sebago Trail, heading SE.
  36. 0.5 miTurn right onto Hilburn-Torne Sebago/7 Hills Trail, heading E.
  37. 0.2 miTurn left onto Diamond Mountain Tower Trail, heading SE.
  38. 0.2 miContinue straight onto Pine Meadow Trail, heading S.
  39. 0.7 miSharp left, heading SE.
  40. 0.1 miTurn left onto Conklins Crossing Trail, heading E.
  41. 50 ftTurn right onto Pine Meadow Trail, heading E.
  42. 1.3 miContinue straight onto Pine Meadow/Suffern-Bear Mountain Trail, heading E.
  43. 0.4 miTurn right onto Pine Meadow Trail, heading E.
  44. 0.5 miBear left, heading E.
  45. 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/diamond-mountain-lake-sebago-out-back-13-sights-23-km-2e53

Trail surface

95% dirt5% unspecified

Weather

Sunrise 6:30 AMSunset 7:21 PM

Good to know

  • Parking lot at the trailhead

More from this trailhead

Hikes near Pomona Heights, New York