Category Archives: Osio Rock

Hiking Torne Mountain! (Norvin Green State Forest)

Norvin Green State Forest

Welcome to Norvin Green State Forest’s Torne Mountain!

Torne Mountain

Torne Mountain, standing at 1,120 feet and located in Passaic County NJ, is situated in the southern section of the estimated 4,982 acre Norvin Green State Forest. The land comprising the forest was donated to the State of New Jersey by the nephew of Ringwood Manor’s Abram S. Hewitt in 1946.

Torne Mountain Norvin Green State Forest

Norvin Green State Forest has the largest concentrations of trails in the state of NJ. Most of the trails date back to the 1920’s when members of a local organization known as the Green Mountain Club constructed them.


NJ Highlands Geology

Many of the rocks that are encountered during this hike have a rounded appearance due to the Wisconsin Glacier which came through the area around 10,000 years ago. This event is relatively recent as the Highlands rocks were formed over four billion years ago.

The rocks  are  “basement rocks” as the younger rocks which originally had covered them eroded away over time. Most of the rocks are thought to be comprised of ancient granite-gneiss.


Below is a brief virtual tour of a section of the 0.4 of a mile Torne Trail and a portion of the 6.4 mile Blue Blazed Hewitt-Butler Trail. Stops include outstanding views and an interesting man-made Stone Living Room. Ready? Let’s do it!

The hike is an estimated 1.5 miles from Otter Hole Road.

Entrance to Torne Trail

Starting from near the Otter Hole Road Parking area, head south to the trailhead of the red blazed Torne Mountain Trail.

To the Blue Trail (Hewitt-Butler Trail)

Once on the Torne trail, signs advertising the blue-blazed Hewitt-Butler Trail will appear.

Hewitt Butler Trail Blaze

Head southwest then south on the blue blazed Hewitt-Butler Trail to Climb Torne Mountain.

View towards Buck Mountain

The first view will be of Buck Mountain to the north. Continuing southeast views  of the Newark Pequannock Watershed land  appear to the west.

Stone Living Room

Near the western viewpoint, a short unmarked trail appears to the left leading to a man-made Stone Living Room.  “Chairs” & “Sofas” have been constructed from surrounding rocks. The Stone Living Room is an excellent place to stop for lunch and rest while taking in views.

View from Stone Living Room

From the Stone Living Room, head back to the Hewitt Butler Trail. Continuing south, descend Torne Mountain passing a stand-alone Stone chair.

Stone Chair

Here you will reach a ravine at the bottom of Torne mountain and the southern trailhead of the red blazed Torne Trail which will be your return back to Otterhole Road.

Rocky Ravine Torne Trailhead

For now, pass the southern trail-head of the Torne Trail and continue southeast on the blue blazed Hewitt-Butler trail climbing to Osio Rock.

Osio Rock

From here, views of the Wanaque Reservoir, the NYC Skyline (on a clear day) and High Mountain of the 2nd Watchung Mountain range may be viewed to the east.

Distant Wanaque Reservoir View from Osio Rock

After taking in the views, turn around and head north west to retrace your steps back to the ravine to the red blazed Torne trail trailhead.

Torne Trail

Here you will take the Torne trail north back to Otterhole Road where the trail began.


Flora found along the trail includes the below among others:


American Chestnut

Pitch Pine

Eastern Red Cedar

Check out Plant Communities of New Jersey.

NJ’s geology, topography and soil, climate, plant-plant and plant-animal relationships, and the human impact on the environment are all discussed in great detail. Twelve plant habitats are described and the authors were good enough to put in examples of where to visit!

Click here for more information!


Eastern Phoebe Nest Torne Trail



Hamburg Turnpike to Glenwild Ave. Parking area is next to Bloomingdale/West Milford border (look for Welcome to West Milford sign, or Welcome to Bloomingdale sign depending on which direction you are traveling.

Great Hiking/Ecology Books:

1. 60 Hikes Within 60 Miles: New York City: Including northern New Jersey, southwestern Connecticut, and western Long Island – Packed with valuable tips and humorous observations, the guide prepares both novices and veterans for the outdoors. From secluded woods and sun-struck seashores, to lowland swamps and rock-strewn mountain tops, this practical guidebook contains all the information needed to have many great hikes in and around New York City.

Click here for more information!

2. Take a Hike New York City: 80 Hikes within Two Hours of Manhattan – In Moon Take a Hike New York City, award-winning writer Skip Card shows you the best hikes in and around The Big Apple—all within two hours of the city.

Click here for more information!

3. Eastern Deciduous Forest, Second Edition: Ecology and Wildlife Conservation – This book is a useful tool for anyone who wants to know or hopes to help one of North America’s great natural resources.

Click here for more information!

4. Protecting New Jersey’s Environment: From Cancer Alley to the New Garden State – With people as its focus, Protecting New Jersey’s Environment explores the science underpinning environmental issues and the public policy infighting that goes undocumented behind the scenes and beneath the controversies.

Click here for more information!

5. Wild New Jersey: Nature Adventures in the Garden State:

Wild New Jersey invites readers along Wheeler’s whirlwind year-long tour of the most ecologically diverse state for its size in America.

Click here for more information!

Feel free to comment below with any bird sightings, interesting plants, memories or suggestions! Thank you and have fun exploring!

Check out the latest bird sightings here!