Dunderberg, the Thunder Mountain
Sunday, January 19, 2025
Come along on an adventure to Thunder Mountain. Dunderberg, historically referred to as Donderberg, is a Dutch word that means “thunder mountain.” The mountain earned its name from the Dutch settlers because of frequent thunderstorms in its vicinity. As we explore the area, we’ll enjoy a quieter, less-traveled part of Harriman State Park. We’ll pass by the tunnels of the long-abandoned Dunderberg Spiral Railway, traverse a pass used by the British military commander in the Revolutionary War, and take in beautiful views of the Hudson Valley.
What’s included:
- NY State Licensed and Wilderness First Responder Certified Guide
- Transportation to and from NYC (if you would like to meet us at the trailhead, please email info@adventureuntamed.com for a discount)
- Beautiful views
Level: Intermediate (Learn More)
Mileage: 7.4 miles
Elevation Gain: 1,820 feet
Group Size: 2 - 14 adventurers
Departure:
Check-in Time: 7:30 am
Departure Time: 7:45 am
Return Time: Approximately 6:00 pm
$84.00
Wear
- Waterproof hiking boots (required)
- Weather-appropriate, moisture-wicking, athletic clothing (no cotton)
- Wool or synthetic socks (no cotton)
- Waterproof gloves
- Warm hat
- Buff
- Sun hat
- Sunglasses
Pack
- We will provide any traction devices you need, but if you have your own microspikes/snowshoes/crampons, feel free to bring them
- Insulating puffy and insulating pants
- Fleece / mid layer
- Windproof/waterproof top and bottom layers that can fit over all other layers
- Lunch
- Ample Snacks
- At least three (3) liters of water (*note* if temperature is below freezing do not bring hydration bladders – will freeze)
- Backpack
- Sunscreen
- Hand / foot warmers (optional)
- Extra layers to adjust for changing weather conditions
- Extra pair of wool socks
- Trekking poles (optional)
- A change of clothes for the ride back (optional)
