Unknown Pond, the Horn, and Mount Cabot

This loop is approximately 11.5 miles long with an elevation gain of around 3,200 feet, making it a challenging full-day hike. Hikers often describe it as moderate to difficult, or even a 'hike and a half,' due to its length and significant elevation changes, especially the scramble up The Horn Summit.

The loop is commonly accessed via the Unknown Pond Trail and Bunnell Notch Trail. Parking is available at the trailhead, but it's advisable to arrive early, especially on weekends, as spots can fill up quickly. There are no shuttles mentioned for this specific trailhead.

The terrain is quite varied. You'll encounter overgrown sections with tall grass and plants, particularly on the Unknown Pond Trail. There are gradual ascents, narrow paths, scenic birch glades, and easy pine-needle walking. The climb to The Horn Summit involves a difficult rock scramble over large boulders, and the descent can include small rocks and stream crossings.

Key highlights include Unknown Pond itself, offering beautiful views with Mount Cabot Summit in the distance. The most spectacular views are from The Horn Summit, which provides nearly 360-degree panoramas. While Mount Cabot Summit is wooded, an old fire tower site nearby offers partial views. You'll also pass The Bulge and experience the beauty of the Great North Woods.

Yes, the trail is generally dog-friendly. However, as it's located within the White Mountain National Forest, dogs must be kept on a leash at all times. Please practice Leave No Trace principles, including packing out all pet waste.

The best time to hike is typically from late spring through early fall (May to October). Fall offers stunning foliage, while summer provides warmer temperatures. Winter hiking is possible but requires specialized gear and experience due to snow, ice, and colder conditions. Be aware that some sections can be overgrown in summer.

No specific hiking permits are required for this trail. However, as part of the White Mountain National Forest, a recreation pass (such as the America the Beautiful Pass or a local WMNF pass) may be required for parking at some trailheads. Always check the latest regulations before your visit.

Yes, this route utilizes sections of several official trails. You will hike along portions of the Cohos Trail, the Kilkenny Ridge Trail, the Unknown Pond Trail, and the Horn Spur.

Yes, the Cabot Cabin is located along the trail and offers a potential overnight stop for hikers. It's a popular spot, so plan accordingly if you intend to use it.

Mount Cabot Summit is the northernmost New Hampshire 4,000-footer and the tallest mountain in the Pilot Range, making it a coveted peak on the New Hampshire 48 4000-footer list. The Horn Summit is featured on the '52 With a View' list for its exceptional vistas and is also included in the New England Hundred Highest list.

While there are stream crossings, it's always recommended to carry sufficient water for the entire hike, especially during warmer months. Filtering water from natural sources is an option, but always use a reliable water filter.