Torne Mountain and Osio Rock Loop
Torne Mountain and Osio Rock Loop
3.0
(17)
30
hikers
01:18
4.07km
170m
Hiking
Hike the Torne Mountain and Osio Rock Loop for rugged terrain, extensive views, and panoramic vistas from Osio Rock in Norvin Green State Fo
Last updated: February 26, 2026
Waypoints
Start point
Parking
Get Directions
2.09 km
Highlight • Viewpoint
Tip by
3.26 km
Highlight • Viewpoint
Tip by
4.07 km
End point
Parking
Way Types & Surfaces
Way Types
4.04 km
< 100 m
Surfaces
4.04 km
< 100 m
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Elevation
Highest point (330 m)
Lowest point (220 m)
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Weather
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Today
Thursday 28 May
23°C
14°C
21 %
Additional weather tips
Max wind speed: 23.0 km/h
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This route was planned by komoot.
This loop is known for its rugged and challenging terrain. Expect steep sections, abundant rocks, exposed roots, and rock slabs. Hikers should be prepared for some scrambling, which may require using both hands and feet. It's not recommended to hike when the ground is wet.
The Torne Mountain and Osio Rock Loop is approximately 4.1 km (2.6 miles) long and generally takes around 1 hour and 18 minutes to complete. This duration can vary based on your pace and how long you spend enjoying the viewpoints.
The trail offers excellent views of Northern New Jersey. Key highlights include the Osio Rock Viewpoint, which provides panoramic vistas that can sometimes include the New York City skyline on clear days, and the Torne Mountain Viewpoint. You can also see the Wanaque Reservoir, Bloomingdale, and Riverdale from various points.
Parking for the trailhead is typically found on Glenwild Avenue. It can be quite limited, especially on weekends. To secure a spot, it's highly advisable to arrive early in the morning.
The trail is best enjoyed during drier seasons. Spring and fall offer pleasant temperatures and beautiful foliage, while summer can be warm but still enjoyable. It's generally not recommended to hike when the ground is wet due to the challenging and rugged terrain.
Yes, dogs are generally allowed on the trails within Norvin Green State Forest. It's always best to keep them on a leash and ensure they are comfortable with rugged, rocky terrain and potential scrambling sections.
No, there are typically no permits or entrance fees required to access the trails within Norvin Green State Forest, including the Torne Mountain and Osio Rock Loop.
Yes, this is a loop trail, often described as a 'Figure-Eight Loop.' It primarily utilizes sections of the blue-blazed Hewitt-Butler Trail and the red-blazed Torne Trail. Following these blazes will guide you along the route.
A notable and unique feature on Torne Mountain is the 'Stone Living Room.' This area has a clearing with a circular arrangement of stone chairs, a fireplace, and even a 'recliner,' all set against the scenic backdrop of the Jersey Highlands.
Yes, the route utilizes significant portions of the Hewitt-Butler Trail and the Torne Trail. While on the loop, you will be traversing sections of these well-known paths within Norvin Green State Forest.
This loop is generally considered 'easy' in terms of overall difficulty, but the terrain is surprisingly rugged with steep, rocky sections and some scrambling. While it's a shorter hike, beginners should be prepared for a challenging experience, and it might be difficult for very young children or those not accustomed to rugged trails.
Given the rugged and rocky terrain, durable hiking boots with good ankle support are highly recommended. Trekking poles can also be very helpful for stability, especially on steep or uneven sections. Bring plenty of water, snacks, and navigation tools.