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Hiking trails & Routes
United States
New Hampshire
Grafton County

Smarts Mountain via Lambert Ridge and Ranger Trail

Routes
Hiking trails & Routes
United States
New Hampshire
Grafton County

Smarts Mountain via Lambert Ridge and Ranger Trail

Moderate

2.8

(20)

51

hikers

Smarts Mountain via Lambert Ridge and Ranger Trail

04:16

11.2km

670m

Hiking

Embark on the Smarts Mountain via Lambert Ridge and Ranger Trail loop for a diverse hiking experience that showcases New Hampshire's natural beauty. The ascent along Lambert Ridge, part of the Appalachian Trail, treats you to scenic quartzite ledges with views of Mt. Cardigan and the Dartmouth Skiway, transitioning into beautiful boreal forest as you climb. The highlight is undoubtedly the Smarts Mountain Fire Lookout Tower, offering spectacular 360-degree panoramic views from its 40-foot perch.

This moderate 7.0-mile (11.2 km) hike involves a significant 2191 feet (668 metres) of elevation gain, typically taking around 4 hours and 15 minutes to complete. The Ranger Trail descent can be quite wet and muddy, particularly after rain, so waterproof footwear is a good idea. Smarts Mountain is a great option if you're seeking a less crowded hiking route compared to the busier White Mountain peaks.

Smarts Mountain is recognized on New Hampshire's "52-with-a-view" list, a testament to its accessible yet rewarding vistas. Along the Ranger Trail, you can also spot historical elements like remnants of old telephone poles and a fire warden's garage, offering a glimpse into the mountain's past as a fire observation post. The summit also features a renovated ranger cabin, providing shelter for Appalachian Trail thru-hikers.

Last updated: June 9, 2026

Waypoints

A

Start point

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8.07 km

Viewpoint

Viewpoint

2

11.0 km

Smarts Mountain Fire Lookout Tower

Highlight • Monument

The Smart Mountain Fire Lookout Tower in New Hampshire is a historic tower that offers panoramic views of the surrounding White Mountain National Forest. It stands tall at an elevation of approximately 3,240 feet and provides a vantage point for observing the forested landscape and potential wildlife activity.

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11.2 km

End point

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Way Types & Surfaces

Way Types

9.65 km

1.53 km

< 100 m

Surfaces

9.68 km

1.44 km

< 100 m

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Elevation

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Highest point (970 m)

Lowest point (340 m)

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Weather

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Today

Sunday 16 August

24°C

8°C

17 %

Additional weather tips

Max wind speed: 11.0 km/h

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Frequently Asked Questions

Where can I park to access the Smarts Mountain loop?

The most common starting point for the Smarts Mountain via Lambert Ridge and Ranger Trail loop is from the parking area off Dorchester Road in Lyme, New Hampshire. This provides direct access to both the Lambert Ridge Trail and the Ranger Trail.

Is the Smarts Mountain via Lambert Ridge and Ranger Trail dog-friendly?

Yes, dogs are generally allowed on the Smarts Mountain trails. However, it's always recommended to keep them on a leash, especially since a portion of the route follows the Appalachian Trail and passes through the White Mountain National Forest, which has specific regulations. Be prepared for rocky and potentially wet sections that might be challenging for some pets.

What is the best time of year to hike Smarts Mountain?

The best time to hike Smarts Mountain is typically from late spring through fall. Summer offers lush greenery, while autumn provides spectacular foliage. Spring can be muddy, especially on the Ranger Trail, and winter hiking requires specialized gear and experience due to snow and ice.

Are there any permits or fees required to hike Smarts Mountain, and what are the regulations for White Mountain National Forest?

No specific permits are required for day hiking Smarts Mountain. However, a portion of the trail is within the White Mountain National Forest. While there are no entrance fees for day use, standard National Forest regulations apply, such as Leave No Trace principles, proper waste disposal, and adherence to fire restrictions. Always check the latest guidelines from the US Forest Service before your visit.

How long does it typically take to complete the Smarts Mountain loop?

The Smarts Mountain via Lambert Ridge and Ranger Trail loop is a moderate hike that typically takes around 4 to 6 hours to complete, depending on your pace and how long you spend at the summit. The total duration for this route is approximately 4 hours and 15 minutes of moving time.

What is the recommended direction for hiking the Smarts Mountain loop?

Many hikers prefer to ascend via the Lambert Ridge Trail and descend via the Ranger Trail. The Lambert Ridge Trail offers more consistent views and is generally steeper, making it a challenging but rewarding climb. The Ranger Trail, while still challenging, is often considered an easier descent, though it can be very wet and muddy in sections.

What is the terrain like on the Smarts Mountain loop?

The terrain is quite varied. The Lambert Ridge Trail involves a consistently steep climb with rocky sections, switchbacks, and some bouldery areas, including wooden staircases and iron rungs near the summit. The Ranger Trail, often used for descent, follows a woods road alongside a brook, featuring occasional ups and downs, rock slabs, and can be very wet and muddy, resembling a streambed in its upper sections.

What kind of views can I expect on the Smarts Mountain hike?

The hike offers excellent views, especially from the Lambert Ridge Trail with its scenic ledges overlooking hills and ponds. The most spectacular views are from the summit, where the recently renovated 40-foot Smarts Mountain Fire Lookout Tower provides 360-degree panoramic vistas. From here, you can see the Upper Valley, the White Mountains, the Green Mountains, and various peaks in Mid-New Hampshire.

What notable features or landmarks will I encounter on the trail?

Beyond the stunning views from the Smarts Mountain Fire Lookout Tower, you'll hike a section of the iconic Appalachian Trail on Lambert Ridge. Near the summit, you can explore an old ranger cabin and Mike Murphy Spring. The Ranger Trail also passes an old fire warden's garage about 1.5 miles from the bottom.

Does this route connect with other well-known trails?

Yes, the route incorporates sections of several well-known paths. A significant portion of the hike follows the Appalachian Trail, specifically along the Lambert Ridge Trail. The loop itself is formed by combining the Lambert Ridge Trail and the Ranger Trail.

What should I know about trail conditions, especially on the descent?

Be prepared for potentially wet and muddy conditions, particularly on the Ranger Trail. This trail often has running water, especially in its upper sections, making it resemble a streambed. Even in dry weather, slick rocks can be present on both trails. Sturdy, waterproof hiking boots with good traction are highly recommended.

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