Harriman State Park

Diamond Mountain–Monitor Rock, 5 beaches

3.1 mi · ▲ 613 ft · 1 hr 20 min

Diamond Mountain–Monitor Rock, 5 beaches is a 3.1-mile out-and-back in Harriman State Park near Tuxedo Park, NY. The route passes Old Sebago Beach, Lake Sebago and Monitor Rock before reaching Diamond Mountain at the turnaround, 1.5 miles in. It climbs 613 ft, with sections as steep as 21% grade, and is mostly dirt. It scores 23/100 on the Ambleway Wildness scale: paved and peopled.

Elevation

0 mi794 – 1,240 ft · steepest grade: 21%3.4 mi

Getting there

Trailhead: Unnamed 41.19812, -74.12952
Nearest town Tuxedo Park, NY

Directions

AMBLEWAYwww.ambleway.com

Diamond Mountain–Monitor Rock, 5 beaches

3.1 mi · ▲ 613 ft · 1 hr 20 min

Elevation 795–1,241 ft

Out & Back · Harriman State Park

Trailhead: 41.19812, -74.12952

Weather Sep 20: sunrise 6:43 AM · sunset 6:59 PM

Parking lot at the trailhead

  1. Start at the trailhead, heading SE.
  2. 50 ftPass Old Sebago Beach.
  3. 50 ftPass Lake Sebago.
  4. 250 ftBear right, heading SE.
  5. 50 ftBear left onto Seven Hills Trail, heading S.
  6. 0.6 miPass Monitor Rock.
  7. 0.7 miContinue straight onto Hilburn-Torne Sebago/7 Hills Trail, heading SW.
  8. 0.2 miReach Diamond Mountain, then turn around and head back the way you came.
  9. 0.2 miContinue straight onto Seven Hills Trail, heading N.
  10. 0.1 miBear right, heading NE.
  11. 1.1 miBear right, heading N.
  12. 50 ftBear left, heading N.
  13. 100 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

95% dirt5% unspecified

Weather

Sunrise 6:43 AMSunset 6:59 PM

Good to know

  • Parking lot at the trailhead

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