5.0
(6508)
16,491
hikers
02:42
8.03km
450m
Hiking
Hike the moderate 5.0-mile Unknown Pond Trail in White Mountain National Forest to a secluded pond with views of The Horn, gaining 1470 feet
Last updated: February 26, 2026
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Your route passes through a protected area
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Waypoints
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8.03 km
End point
Way Types & Surfaces
Way Types
8.03 km
Surfaces
7.98 km
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Sunday 17 May
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22 %
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This route was planned by komoot.
The trailhead for the Unknown Pond Trail is accessed via Mill Brook Road. Be aware that this is a 4.5-mile dirt road, which is seasonally closed in winter. Plan your visit accordingly, especially if driving a vehicle with lower clearance.
Yes, the Unknown Pond Trail is generally dog-friendly. However, as it's located within the White Mountain National Forest, it's always best to check current regulations regarding leash laws and pet waste. Always keep your dog under control and pack out all waste.
The trail is best hiked outside of winter due to the seasonal closure of Mill Brook Road. Spring, summer, and fall offer beautiful scenery, with autumn providing particularly vibrant foliage. Be prepared for varied weather conditions, especially at higher elevations.
While there are no specific permits required for day hiking the Unknown Pond Trail itself, some areas within the White Mountain National Forest may require a recreation pass for parking at certain trailheads. It's advisable to check the USDA Forest Service website for the most current information on passes and regulations.
The trail offers varied terrain. The initial mile is generally easy, following a brook. It then gradually ascends, becoming steeper and more challenging as you progress. Expect sections that are rocky, rooty, and potentially overgrown. You'll traverse open forest, a beautiful birch glade, and darker spruce and fir woods.
The Unknown Pond Trail is rated as moderate to difficult. While the initial mile is easy, the trail becomes progressively steeper and more rugged. It might be challenging for very young children or absolute beginners due to the elevation gain and varied terrain. Families with hiking experience may find it rewarding.
Key scenic highlights include the transition through different forest types, a beautiful birch glade, and the picturesque Unknown Pond itself. From the pond's shoreline, you'll get striking views of "The Horn" mountain rising over the dark water. The Kilkenny forest's lichen-draped spruce and fir also add to the beauty.
Due to its remote location and sometimes overgrown sections, wildlife encounters are common. Hikers might spot various forest animals. It's always a good idea to make noise while hiking to alert animals to your presence and avoid surprising them.
Yes, the Unknown Pond Trail serves as a gateway to longer excursions. It connects with the Kilkenny Ridge Trail, allowing hikers to extend their journey to other significant peaks such as The Horn, The Bulge, and Mount Cabot. The route also passes through sections of the Cohos Trail.
Yes, for those looking to extend their stay, there are designated tent sites and an outhouse available directly at Unknown Pond. This makes it a great option for a backcountry overnight experience.
Given the trail's moderate difficulty and varied terrain, essential items include sturdy hiking boots, plenty of water, snacks, a map and compass or GPS, rain gear, extra layers of clothing, and insect repellent. Due to the remote nature, a first-aid kit is also highly recommended.