Dunderberg Mountain

Southern Portion
Bear Mountain State Park
Rockland County,
New York

Total Time: 2:30 hours
Total Distance: 4.5 miles

Hiking Partners:
Yehuda Koblick
Shimmy Rosenberg

Trails:
Timp Torne Trail (T-T): Blue Blaze
Ramapo Dunderberg (R-D): Red Blaze
1777 Trail: Red Blaze


It had been about 3 years since I was last at Dunderberg, so this trip was long overdue. Dunderberg Mountain jumps out of the Hudson River with its very steep incline. The mountain is full of remnants of an abandoned railway that was partially constructed in the 1890's for a hotel on the top of the mountain.

This was a very hot and muggy day, which restricted the views and made the extensive uphill very uncomfortable. We parked on Route 9W at the trailhead parking across from the Anchor Monument along the Hudson River. We started at the trailhead of the T-T and R-D where they confluence for a short time, and then veered off on the T-T Trail, along the old abandoned railway bed and the tunnels. Continued up the mountain to the viewpoint where Indian Point is clearly visible across the river, and went further until the intersection with the 1777 Trail, which we took south and then east down the mountain.

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Map of the Route

One of the spiral railway tunnels

Me and Shimmy in one of the tunnels

View from inside the tunnel looking out.

At the viewpoint after the bend.

Looking South accross the Hudson River

and Verplanck in Westchester.

Indian Point Nuclear Reactor across the Hudson River.

The heavy haze makes it hard to see.

Me and Yehuda at the lookout, overlooking the Hudson

Shimmy swinging off a Jungle Vine

Shimmy and Yehuda reading the 1777 trail plaque

Me at the Anchor Monument, with Indian Point behind me.