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Routes
Hiking trails & Routes
United States
Virginia
Fairfax County
Mclean

Pimmit Run Trail

Hard

4.6

(3871)

6,679

hikers

Pimmit Run Trail

09:51

37.9km

250m

Hiking

Hike the difficult 23.5-mile Pimmit Run Trail in McLean, Virginia, gaining 825 feet over varied terrain and scenic creek views.

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

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7.46 km

Little Pimmit Run Stream Valley Park

Nature Reserve

B

37.9 km

End point

Parking

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Way Types & Surfaces

Way Types

31.9 km

2.94 km

2.76 km

261 m

Surfaces

27.5 km

5.69 km

2.52 km

972 m

865 m

361 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 (110 m)

Lowest point (30 m)

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Weather

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Today

Saturday 23 May

14°C

9°C

98 %

Additional weather tips

Max wind speed: 23.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Is the Pimmit Run Trail suitable for beginners or families?

Yes, the Pimmit Run Trail is generally considered easy to moderate and is suitable for beginning hikers, families, and dog walkers. While much of it is runnable, be aware that about 20% of the trail features more challenging sections with exposed roots, rocky areas, and potential mud, especially after rain. There's also a particularly precarious wooden bridge that adds a moment of challenge.

What is the terrain like on the Pimmit Run Trail?

The trail offers a diverse mix of surfaces. You'll encounter primarily unpaved singletrack, but also sections of smooth asphalt near residential areas. Expect rocky sections, exposed roots, and logs, particularly when crossing floodplains. There are several creek crossings, some requiring careful footwork over stepping stones, or even navigating deeper water after heavy rain. While mostly flat, there are short climbs and descents, and some parts become more technical where the stream buffer widens.

What kind of scenery can I expect along the route?

Despite its urban proximity, the trail provides a surprisingly 'in the woods' feel. Key scenic elements include the Pimmit Run stream itself, with a picturesque spot where water tumbles over a sandstone slab into a peaceful pool. You'll cross various bridges, pass through unique bamboo groves, and might catch glimpses of towering mansions in McLean, though these rarely detract from the natural setting. Occasional views upstream and of the GW Parkway are also possible.

Is the Pimmit Run Trail dog-friendly?

Yes, the Pimmit Run Trail is dog-friendly. Dogs are welcome but must be kept on a leash at all times to ensure the safety and enjoyment of all trail users and local wildlife.

What is the best time of year to hike this trail?

The Pimmit Run Trail can be enjoyed year-round. Spring brings lush greenery and blooming wildflowers, while autumn offers vibrant fall foliage. Summer is pleasant, but be prepared for humidity and potential muddy spots after rain. Winter hiking is possible, but watch for icy conditions on bridges and rocky sections. For the most comfortable experience, spring and fall are often ideal.

Are there any permits or entrance fees required to access Pimmit Run Stream Valley Park?

No, there are no permits or entrance fees required to access the Pimmit Run Trail or Pimmit Run Stream Valley Park. It is open to the public for recreational use.

Where can I park to access the Pimmit Run Trail?

The Pimmit Run Trail is segmented due to private properties, but trailheads at road crossings often provide access. While specific parking lots aren't detailed, look for street parking or small designated areas near these access points in McLean, Virginia. Maps and signposts are typically available at these trailheads to help you navigate.

Does the trail intersect with other paths?

Yes, the route also passes through sections of the Pimmit Run Trail, the Potomac Heritage National Scenic Trail (right bank), and the Pimmit Trail.

What kind of wildlife might I see on the trail?

Despite its urban surroundings, the trail offers opportunities for wildlife sightings. Hikers have reported seeing black vultures, various fish in the run, and deer. Keep an eye out, especially during quieter times of day.

Is the Pimmit Run Trail a loop or an out-and-back route?

The Pimmit Run Trail follows much of the 7.8-mile stream from Fairfax County to the Potomac River. It is segmented into three distinct parts, meaning it is primarily an out-and-back experience for individual sections, rather than a continuous loop. You can hike various segments as out-and-back routes.

What should I be aware of regarding trail conditions after heavy rain?

After heavy rain, sections of the Pimmit Run Trail can become quite muddy, and exposed roots may be slick. Creek crossings might involve navigating deeper water than usual, and some areas, particularly in floodplains, can be more challenging. Always exercise caution and wear appropriate waterproof footwear.

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