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Routes
Hiking trails & Routes
United States
New York
Rockland County

Diamond Mountain and Pine Meadow Lake Loop

Moderate

4.8

(9606)

13,268

hikers

Diamond Mountain and Pine Meadow Lake Loop

03:42

13.1km

280m

Hiking

Embark on the Diamond Mountain and Pine Meadow Lake Loop, a moderate hike spanning 8.1 miles (13.1 km) with an elevation gain of 933 feet (284 metres). You can expect to complete this journey in about 3 hours and 41 minutes. As you hike, you will experience a diverse landscape,…

Last updated: April 23, 2026

Waypoints

A

Start point

Parking

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1

2.87 km

Waterfall

Highlight • Waterfall

"Ga-Nus-Quah" translates to "Stone Giants," according to the Harriman Trails guidebook. The park's official trail map marks this spot: parks.ny.gov/documents/parks/HarrimanTrailMap.pdf What they don't tell you, though, is that there is …

Tip by

3.52 km

Ruins

Ruins

3

4.75 km

Pine Meadow Lake Fire Ring

Highlight • Lake

B

13.1 km

End point

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Way Types & Surfaces

Way Types

12.0 km

1.07 km

Surfaces

10.5 km

2.56 km

< 100 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (360 m)

Lowest point (140 m)

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Weather

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Friday 10 July

29°C

21°C

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Frequently Asked Questions

What is the terrain like on the Diamond Mountain and Pine Meadow Lake Loop?

The terrain on this loop is quite varied, offering a dynamic hiking experience. You'll traverse wooded sections, open rock slabs, and rocky stretches. Expect significant elevation changes with steep climbs and descents, and some sections even involve rock scrambles, particularly on the western side of Diamond Mountain. The route often follows the scenic Stony Brook, featuring streams and occasional waterfalls.

Are there any challenging sections on the Diamond Mountain and Pine Meadow Lake Loop?

Yes, the loop includes some challenging sections. Hikers should be prepared for two steep climbs and one steep descent. The western side of Diamond Mountain, in particular, features rock scrambles that many find to be a fun, albeit demanding, part of the hike. Good fitness and sure-footedness are recommended for these parts.

What are the main points of interest along the route?

The loop offers a variety of scenic points. Highlights include expansive vistas of Pine Meadow Lake, Lake Sebago, and Lake Wanoksink. You'll pass a beautiful waterfall and the picturesque Pine Meadow Lake Fire Ring. The trail also features glimpses of historical elements, such as ruins of an unfinished dam and other structures, and sometimes the remains of a Civilian Conservation Corps (CCC) headquarters.

Where can I park for the Diamond Mountain and Pine Meadow Lake Loop?

Specific parking information for this loop often points to trailheads within Harriman State Park. It's advisable to check the park's official website or local hiking guides for the most current and precise parking locations, as options can vary and fill up quickly, especially on weekends.

Do I need a permit or pay an entrance fee for this trail?

Generally, there are no specific permits required to hike the Diamond Mountain and Pine Meadow Lake Loop itself. However, as it's located within Harriman State Park, standard park entrance fees or parking fees may apply depending on the specific access point and time of year. Always check the official Harriman State Park website for the most up-to-date information on fees and regulations.

What is the best time of year to hike this loop?

The Diamond Mountain and Pine Meadow Lake Loop can be enjoyed in various seasons. Spring brings wildflowers and flowing streams, while autumn offers vibrant fall foliage. Summer is popular, but can be crowded, especially around Pine Meadow Lake. For a quieter experience and pleasant temperatures, late spring and early fall are often ideal.

Is winter hiking possible on this loop?

Yes, winter hiking is possible on the Diamond Mountain and Pine Meadow Lake Loop, offering a different kind of beauty. However, conditions can be challenging with snow and ice, especially on rocky sections and steep climbs/descents. Proper winter hiking gear, including microspikes or snowshoes, is highly recommended for safety.

Is the Diamond Mountain and Pine Meadow Lake Loop dog-friendly?

Yes, dogs are generally allowed on the Diamond Mountain and Pine Meadow Lake Loop. However, they must be kept on a leash at all times, as per Harriman State Park regulations. Be mindful of the rocky terrain and potential scrambles, which might be challenging for some dogs.

Is this trail suitable for families with children?

While the trail is considered moderate to moderately strenuous, some sections with steep climbs, descents, and rock scrambles might be challenging for younger children or those new to hiking. Families with older, experienced children who are comfortable with varied terrain and longer distances might enjoy it. Always assess your family's fitness level before attempting the full loop.

Does the trail intersect other well-known paths?

Yes, the route for the Diamond Mountain and Pine Meadow Lake Loop utilizes sections of several other official trails. You'll find yourself on parts of the Pine Meadow Trail, Raccoon Brook Hills Trail, Kakiat Trail, Reeves Brook Trail, and the 7 Hills Trail as you complete the loop.

Are there any specific regulations for hiking in Harriman State Park?

When hiking in Harriman State Park, it's important to follow Leave No Trace principles, pack out all trash, and stay on marked trails. Dogs must be leashed. Camping is generally restricted to designated areas, and fires are only permitted in established fire rings. Always check the official park website for the most current regulations before your visit.

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