Timp-Torne Trail and Dunderberg Spiral Railway and Loop
Timp-Torne Trail and Dunderberg Spiral Railway and Loop
4.9
(4306)
10,514
hikers
01:57
5.89km
270m
Hiking
Embark on an easy 3.7-mile (5.9 km) hike along the Timp-Torne Trail and Dunderberg Spiral Railway and Loop, a route that offers a blend of natural beauty and historical intrigue. You will navigate through a mixed hardwood forest, encountering interesting rock formations and sections of old rail beds. The trail…
Last updated: April 23, 2026
Waypoints
Start point
Parking
Get Directions
1.48 km
Viewpoint
Viewpoint
2.19 km
Viewpoint
Viewpoint
2.54 km
Viewpoint
Viewpoint
3.42 km
Viewpoint
Viewpoint
5.89 km
End point
Way Types & Surfaces
Way Types
5.68 km
165 m
< 100 m
Surfaces
5.72 km
142 m
< 100 m
Sign up to see more specific route details
Sign up for free
Elevation
Highest point (270 m)
Lowest point (0 m)
Sign up to see more specific route details
Sign up for free
Weather
Powered by Foreca
Today
Friday 8 May
16°C
4°C
20 %
Additional weather tips
Max wind speed: 18.0 km/h
to get more detailed weather forecasts along your route
This route was planned by komoot.
The specific loop described, which is approximately 5.9 kilometers (3.7 miles) long, can typically be completed in about 1 hour and 57 minutes of moving time. However, given the challenging sections and historical features, many hikers allow more time to enjoy the views and explore. Longer, more strenuous loops integrating these trails can take significantly longer.
While the specific route is rated as 'easy' in terms of overall duration and distance, sections of both the Timp-Torne Trail and the Dunderberg Spiral Railway are generally considered moderate to difficult. You'll encounter steep, rocky sections, and parts of the old railway grades can be demanding. Less experienced hikers might find some climbs strenuous, so come prepared with sturdy footwear and plenty of water.
The terrain is quite varied. You'll traverse a mixed hardwood forest with oak, maple, and birch trees. Expect interesting rock formations and some steep, rocky sections, which can be slippery when wet. The Dunderberg Spiral Railway portion includes walking along old rail beds and passing through two tunnels, with parts consisting of broken rocks from the original construction. It's a dynamic and engaging journey.
This hike offers a rich blend of natural beauty and history. You'll get expansive panoramic views of the Hudson River, the surrounding highlands, and even the distant Manhattan skyline from vantage points like The Torne, The Timp summit, and West Mountain. Historically, you'll walk through remnants of the never-completed Dunderberg Spiral Railway, including two unique tunnels, and pass markers commemorating Revolutionary War history.
Yes, this route integrates several official trails. You'll spend significant portions on the Ramapo Dunderberg Trail and the Timp Torne Trail. Smaller sections also follow the Jones Trail and NY Bike Route 9, allowing for diverse loop configurations within Bear Mountain and Harriman State Parks.
The trail is enjoyable in most seasons. Spring brings lush greenery and wildflowers, while autumn offers spectacular fall foliage, making it a very popular time. Summer is also great, but be prepared for warmer temperatures and potential humidity. Winter hiking is possible, especially on the Dunderberg Spiral Railway sections, but requires appropriate gear for snow and ice.
Yes, the trails within Bear Mountain State Park, including the Timp-Torne Trail and Dunderberg Spiral Railway, are generally dog-friendly. However, dogs must be kept on a leash at all times. Be mindful of the challenging and rocky terrain, which might be difficult for some dogs, especially in steep sections or during hot weather.
No specific hiking permits are required for the Timp-Torne Trail or Dunderberg Spiral Railway. These trails are located within Bear Mountain State Park, which typically does not charge an entrance fee for hikers. However, there may be parking fees at certain lots, especially during peak season or weekends. Always check the official Bear Mountain State Park website for the most current information on parking and regulations.
The starting point for this loop can vary depending on where you choose to park. Common access points are often found near the Bear Mountain Inn or along Route 9W. Parking is available at various lots within Bear Mountain State Park, but these can fill up quickly on weekends and holidays. Arriving early is highly recommended to secure a spot.
The mixed hardwood forests and varied terrain provide habitat for diverse wildlife. Hikers commonly spot white-tailed deer, red-tailed hawks soaring overhead, and various songbirds. Keep an eye out for smaller mammals and reptiles as well. Remember to observe wildlife from a distance and never feed animals.
Given the moderate to difficult sections and varied terrain, it's essential to bring sturdy hiking boots with good ankle support. Sufficient water is crucial, especially during warmer months, as there are no water sources directly on the trail. A map or GPS device is also recommended, as some sections can be poorly marked or overgrown. Snacks, sun protection, and layers of clothing are also advisable.