Nineteen Mile Brook, Carter-Moriah, and Imp Trail Loop

This challenging loop is quite long and demanding. Komoot estimates the duration at approximately 7 hours and 8 minutes of pure moving time. However, due to its significant elevation gain and rugged terrain, most hikers should plan for a full day, likely 8-10 hours or more, including breaks and time to enjoy the views. Factors like fitness level, weather, and trail conditions can significantly impact your overall time.

No, this loop is generally considered difficult and is not recommended for beginners. It involves significant elevation gain (nearly 1,000 meters), rugged and varied terrain, and can be very steep in sections. Hikers should have prior experience with challenging mountain trails, good physical fitness, and be prepared for a long day.

The loop typically starts from the Nineteen Mile Brook Trailhead, which is located off NH Route 16 in Pinkham Notch. There is a parking lot available at the trailhead. It's advisable to arrive early, especially on weekends and during peak season, as parking can fill up quickly for popular White Mountain trails.

The terrain is highly varied and demanding. You'll encounter rocky paths, roots, and uneven surfaces throughout. The Nineteen Mile Brook Trail features a steady uphill grade, often alongside the brook, with some steep, rocky sections and water crossings. The Carter-Moriah Trail includes second-growth woods, brushy areas, and can involve boulder sculptures, ledges, and mushy bogs with bridges. The Imp Trail also has steep sections, particularly through a creek bed. Expect wet and slippery conditions, especially on rocks, and mud is common. At higher elevations, even in late spring or early fall, snow and ice can be present.

This loop offers several fantastic viewpoints and landmarks. You'll pass the Zeta Pass and have opportunities to summit peaks like South Carter Mountain and Middle Carter Mountain. A highlight is Mount Hight, which, despite not being an official 4,000-footer, provides exceptional panoramic views of the Presidential Range. On the Imp Trail, the Imp Face viewpoint offers impressive westward views across Pinkham Notch. The Carter Notch Hut is also a popular stopping point.

The best time to hike this loop is typically from late spring through early fall (June to October). During these months, the weather is generally more favorable, and snow and ice are less prevalent at lower elevations. However, be prepared for variable conditions, especially at higher altitudes, where snow and ice can persist into late spring or appear early in the fall. Fall foliage can make for a particularly scenic hike, but also means more hikers. Winter hiking is possible but requires specialized gear and experience due to extreme conditions.

Yes, this loop utilizes sections of several well-known trails within the White Mountain National Forest. You will hike along portions of the Imp Trail, Nineteen Mile Brook Trail, Carter Dome Trail, North Carter Trail, and a significant section of the Appalachian Trail.

Yes, dogs are generally allowed on this trail. However, they must be kept on a leash at all times to protect wildlife and ensure the safety and enjoyment of all trail users. Please remember to pack out all pet waste.

For day hiking in the White Mountain National Forest, you typically do not need a specific hiking permit for yourself. However, some trailheads, including the Nineteen Mile Brook Trailhead, may require a parking fee or a recreation pass (such as the America the Beautiful Pass or a local White Mountain National Forest pass). Always check the signage at the trailhead for current requirements. There are no entrance fees to access the White Mountain National Forest itself.

The Nineteen Mile Brook Trail section offers good access to water sources from the brook for refilling bottles. However, it is crucial to filter or treat any water collected from natural sources to prevent illness. Always carry sufficient water for your hike, as reliable water sources may be scarce or seasonal on other parts of the loop, especially at higher elevations.

Given the difficulty and length of this loop, you should be prepared with the Ten Essentials for Hiking. This includes plenty of water (and a filter/purifier), high-energy snacks, navigation tools (map, compass, GPS device or app like komoot), a headlamp, sun protection, first-aid supplies, a knife or multi-tool, fire starter, emergency shelter, and extra layers of clothing. Dress in moisture-wicking layers, and wear sturdy hiking boots with good ankle support. Trekking poles are highly recommended for the steep and rugged terrain.