Diamond Mountain

Duration: 5 Hours
Difficulty: Moderate
Distance: Up to 9 Miles
Elevation: 1,200 Feet

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This hike, located in the southwest section of Harriman State Park, is a moderately challenging hike, with several small streams to cross on stones or logs. This is one of my favorite hikes with countless cascades, various terrain, and great views.

The trail begins following the scenic Stony Brook, which flows year round. The uphill ascent is steady but gradual.

After some rock hopping, the trail crosses the river on a wooden footbridge. Ga-Nus-Quah Rock, a rock outcropping with a river running through, offers the perfect backdrop for a rest stop. The trail then continues its gradual ascent along a mountain laurel path before reaching a side trail that leads to the shore of Pine Meadow Lake.

After the lake, the trail continues up Diamond Mountain with some switchbacks to help with the steep incline. As we gain the ridge, we’re rewarded with one viewpoint after another. The summit, around 1,230 feet offers views south all the way to the New York City skyline on a clear day, West to the rest of the park, and Southeast to pine meadow lake.

The trail follows the ridgeline to the Western side of diamond Mountain with great viewpoints along the way, and eventually begins descending back through Mountain Laurel and across a few more streams.

There is currently a bridge out, so a short detour leads up to the Cascade of Sid, a small waterfall with a wooden footbridge that provides easy access back across the river. The scenic stony brook will lead us all the way back to the visitor center, completing this fantastic loop hike.

Optional Variations:
Harriman State Park offers a maze of trails, which allows for visitors to shorten or extend the planned route. This hike can even be done in reverse to incorporate a steep uphill ascent with some exciting rock scrambles.

Meeting Location: Reeves Meadow Information Center,
54 Seven Lakes Dr, Sloatsburg, NY 10974

Alternate Address, Depending on your GPS:
7 Seven Lakes Drive, Southfields, NY 10975
(See map below)

Guided Day Hikes Include:

• Licensed guide and certified wilderness first responder
• Group gear (Water filter, first aid kit, maps, compass)
• Snacks & water bottles
• Trekking pole rental

What to Bring:

• Comfortable, sturdy footwear (Trail runners, sneakers or hiking boots)
• Rain jacket, poncho or umbrella
• Lunch (optional - snacks and water provided)

Transportation Options to and from Trailhead:
Prices are per group up to 6 person maximum

• P/U at Mount Kisco Train Station $75/group
• P/U at Grand Central Terminal $200/group
• Door to Door (Anywhere in NYC) $250/group

*Portions of this trail may be muddy and slick due to the proximity to rivers and streams. Sturdy footwear required.*

There is limited or no cell phone service at this location.

*Return times are best estimates, and can vary based on the speed and fitness level of the group.