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Running trails & routes
United States
New Hampshire
Carroll County

Dry River and Isolation Trail Loop

Hard

4.8

(4628)

17,955

runners

Dry River and Isolation Trail Loop

04:35

32.7km

1,070m

Running

This 20.3-mile loop in the Presidential Range-Dry River Wilderness is a difficult hike with 3510 feet of gain and panoramic views.

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

Get Directions

1

11.0 km

Isolation Trail

Highlight (Segment) • Trail

Isolation Trail climbs from the west and hits the ridge just below the summit of North Isolation. The trail has a few different spots that break into clearings with views …

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2

16.3 km

Mount Isolation

Highlight • Summit

The Mt. Isolation is not high but all the more remote. If you want to experience solitude and seclusion in the woods of New Hampshire, this is the place for …

Translated by Google •

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B

32.7 km

End point

Parking

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Way Types & Surfaces

Way Types

29.4 km

3.25 km

< 100 m

Surfaces

28.6 km

4.06 km

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (1,240 m)

Lowest point (380 m)

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Weather

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Today

Wednesday 8 July

24°C

11°C

0 %

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Max wind speed: 8.0 km/h

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Frequently Asked Questions

Is the Dry River and Isolation Trail Loop suitable for jogging?

No, the Dry River and Isolation Trail Loop is generally not recommended for jogging. It is an extremely challenging and rugged route, better suited for experienced hikers. The terrain includes numerous obstacles, poor footing, and difficult sections that make continuous running impractical.

What is the terrain like on the Dry River and Isolation Trail Loop?

The terrain is exceptionally rugged. The Dry River Trail, in particular, features extensive blowdowns (fallen trees), significant washouts, and eroded riverbanks requiring climbing and descending steep sections. Many parts are frequently wet and muddy, with challenging river crossings. The Isolation Trail also has wet, muddy, and steep sections, though some parts may offer better footing in dry conditions.

How long does it typically take to complete the Dry River and Isolation Trail Loop?

Given its difficult nature and rugged terrain, this loop typically takes around 16,526 seconds (approximately 4 hours and 35 minutes) for a very fast hiker. However, most hikers should plan for a significantly longer duration, potentially 8-12 hours or more, depending on conditions and experience, as it is a difficult 32.7 km route with over 1000 meters of elevation gain.

Where can I park for the Dry River and Isolation Trail Loop?

Parking information for the Dry River and Isolation Trail Loop trailhead is typically available near the Crawford Notch area. Specific parking lots may require a fee or have limited space, especially during peak seasons. It's advisable to check current parking regulations and availability before your visit.

Do I need a permit or pay an entrance fee for the Presidential Range-Dry River Wilderness?

While there isn't a specific entrance fee for the Presidential Range-Dry River Wilderness itself, some trailheads or parking areas within the White Mountain National Forest may require a parking pass or fee. Always check with the local forest service office or website for the most current information regarding permits or fees for the specific trailhead you plan to use.

Is the Dry River and Isolation Trail Loop dog-friendly?

Yes, dogs are generally allowed on the Dry River and Isolation Trail Loop. However, due to the extremely rugged and challenging nature of the trail, including difficult river crossings, blowdowns, and steep sections, it may not be suitable for all dogs. Always keep your dog on a leash and ensure they are prepared for a strenuous wilderness experience.

What is the best time of year to visit the Dry River and Isolation Trail Loop?

The best time to visit is typically late spring through early fall (June to October) when snow has melted and temperatures are milder. Fall offers spectacular foliage. However, be aware that the trail can be very wet and muddy, especially after rain, regardless of the season. Winter hiking is possible but requires advanced skills, specialized gear, and an understanding of extreme cold and snow conditions.

What are the main viewpoints or highlights along the route?

The primary highlight is Mount Isolation, which offers incredible 360-degree views of the Presidential Range, including Mount Washington. The trail also passes through the remote Presidential Range-Dry River Wilderness, providing a true wilderness experience with picturesque forests, beautiful birch trees, and numerous brooks and cascading water features.

Are there any challenging sections or specific hazards to be aware of?

Yes, the trail has several significant hazards. The Dry River Trail is known for extensive blowdowns, washouts, and eroded riverbanks. Route finding can be difficult due to damage and adherence to 'wilderness standards' (less clear blazes). Both the Dry River and Isolation Trail sections are frequently wet and muddy, with challenging river crossings. One section has been described as a 'true no fall zone' due to a muddy ridge with a significant drop.

Does the Dry River and Isolation Trail Loop intersect with other trails?

Yes, the route utilizes and intersects with several other trails. Significant portions follow the Dry River Trail and the Isolation Trail. It also passes through sections of the Cohos Trail, Saco River Trail, Davis Path, Sam Willey Trail, Appalachian Trail, and Webster Cliff Trail, among others.

What kind of wilderness experience can I expect on this trail?

You can expect a remote and less-traveled wilderness experience. The trails are maintained to 'wilderness standards,' meaning less human intervention and a more natural, rugged feel. This offers solitude and a deep immersion in the natural environment of the Presidential Range-Dry River Wilderness, away from more crowded routes.

What should I bring for a trip on the Dry River and Isolation Trail Loop?

Given the trail's difficulty and remoteness, essential gear includes sturdy hiking boots (waterproof recommended), plenty of water and food, navigation tools (map, compass, GPS), rain gear, extra layers, a headlamp, first-aid kit, and insect repellent. Trekking poles are highly recommended for stability on the rugged and often muddy terrain.

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