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Difficult Run Hike

With fifty percent of the Difficult Run hike following the Potomac River at one of its most scenic spots, it's easy to see why so many people make Great Falls Park one of their favorite local hikes. Difficult Run drops over several small waterfalls as it winds its way to the Potomac River, where the Potomac River passes through a deep gorge with fast moving water. Just 2.8 miles from the Scott's Run Nature Preserve, this is one of two scenic loop hikes just outside the Capital Beltway.

From the end of the parking area, take the Difficult Run Trail as it follows the run bank before passing under Georgetown Pike in 0.3 miles. Just after passing under Georgetown Pike, the trail will become wider as it continues along Difficult Run for another 0.9 miles and past the junction of the Ridge Trail on your left. Continue downhill past the Ridge Trail, where the Difficult Run Trail ends at the confluence of the Potomac River.

Return to the intersection of the Ridge Trail and turn right. Follow the trail to the top of the rise and turn left following the ridge. In 0.5 miles turn right downhill on the blue blazed River Trail as it steeply descends toward the Potomac River.

The trail is hard to spot in places because of blow downs, just follow the blue blazes. The trail passes over a small footbridge and a paved road, then continues just to the right on the other side.

Continue on the blue blazed trail as it follows the river before arriving at Patowmack Canal ruins. In 50 yards, turn right over the footbridge then left following the green blazed River Trail. The trail will descend over a large footbridge before arriving at the main picnic area of Great Falls Park. Stay right and pass the two main scenic overlooks at Great Falls Park.

Just past the second overlook, cross the footbridge turning left back through the picnic area. Stay right, then at the fork, bear left towards the bathroom facilities (right is a parking area). After passing the bathrooms, turn right onto the Old Carriage Road.

In 0.5 miles, turn right on the Swamp Trail. Follow the Swamp Trail for 0.4 miles where it ends at the next trail junction. Turn right climbing over the hill and in 0.3 miles the trail ends at the junction of the Ridge Trail.

Turn left, and in 60 yards, at the bottom of the depression, a small trail marked only by a single split rail post turns right downhill. Turn right on the trail as it heads down the ravine for the remaining 0.2 miles back to Georgetown Pike and the parking area.

Use Extreme Caution crossing Georgetown Pike back to the parking area.

Explore 19 trails near McLean, VA

Know Before You Go

  • Difficult Run Trail in McLean, VA offers a scenic 4.9-mile hike featuring waterfalls, a gorge, and views of the Potomac River.
  • The hike involves varied terrain, including sections along Difficult Run, a ridge, and the Potomac River, with some potentially hard-to-follow sections near the River Trail.
  • The route includes points of interest like Patowmack Canal ruins and scenic overlooks at Great Falls Park, with a final caution to use extreme care when crossing Georgetown Pike.
Interactive topographic map for Difficult Run Hike located in McLean, VA. Click the "View Map" button to load GPS coordinates and trail markers.
Get directions
Distance
4.9 mi
Difficulty
Easy
Type
Loop
Est. Time
2.5 hrs
Elev. Gain
616'
Rating
3.9
Added
April 03, 2025
Updated
April 06, 2025

Weather Forecast

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Total Change
204'
Ascent
616'
Descent
616'
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Features

Vista / Lookout Point
Dogs
Waterfalls
Water Source

Points of interest

  1. Parking

    38.978135, -77.248863
  2. Main Trailhead

    38.978261, -77.248821

Safety information

For your own safety: plan ahead, let someone know where you'll be, and hike at your own risk.

Hazards

Snakes (Rattlesnakes, Copperheads, others)
Poison Ivy or Poison Oak

Markers

Blaze Color

Blue

Availability

All seasons

Surface type

Dirt

Trip Reports (Reviews)

Rated 3.93 out of 5 based on 45 ratings.

Ready to help fellow hikers? Add a trip report to share your experience and provide valuable insights for other hikers!

By: Cate
4.9 miles / 7.9 km
January 21, 2019
The Difficult Run Trail (at least where it meets the parking lot for this hike) is closed for repair. I wasn't sure what or where the issue was so I just reversed the directions for the above hike, crossed Georgetown Pike and started on the unmarked, but easy to spot trail that starts right across the street from the parking lot (Google Maps has it labeled as Wolfpack Trail). I went left where Wolfpack Trail dumps out onto Ridge Trail, right onto Swamp Trail, and left onto Old Carriage Road which took me to the overlooks. This shortens the hike to about 3 miles round trip, but the overlooks are amazing and totally worth it. Saw a few people, but was alone most of the time, probably thanks to the weather (16 degrees when I started out at 10:30am!!) While not blazed, the trails are easy to follow in most places. There are several parts where the trail is iced over so watch your step!
Legacy Review
By: cmg
4.9 miles / 7.9 km
June 03, 2017
We started at 9am at the Georgetown Pike parking lot. There's actually 3 trails that meet there, take the farthest east trail entrance that has a small sign post (not the trail with the large cross county map and not the trail across Georgetown Pike. Get to the parking lot early it was almost full at 9am on Saturday when we started. This hike took us about 5 hours but we stopped for lunch at the picnic area near the bathrooms and checked out most of the overlooks and small paths by the river. Everything is well signed but the blaze is now green instead of blue. Definitely take the Swamp Trail since we saw maybe two people on that trail and it was quite beautiful. I'll try this hike again in Fall/Winter to see the views without the leaves- perhaps in the reverse.
Legacy Review
By: Suzanne
4.9 miles / 7.9 km
May 26, 2017
Hiked this trail today (Friday) after work. Start about 6:30 or so, and was practically the only one one the trail, until I got to the main part of the park. I was expecting crowds after reading the previous reviews, but that just didn't materialize. The hike is beautiful, with tremendous water views along most of the hike. The River Trail is green blazed,not blue. And it is indeed hard to pick up after the steep descent. Just keep walking towards the park, and you will eventually cross the paved road and know that you are on track. Once I got to the park, and passed the second overlook, I had a little bit of trouble finding Carriage Road. The bathrooms and parking lot referred to in the right up are not the bathrooms and parking lot by the Visitor's Center. Once I realized that, I was back on track. All in all a great hike. Got back to my car at about 8. Would have taken more time but was walking fast so as to not run out of daylight.
Legacy Review
No community routes found. To add your own hike as a Community Route for this Trail guide, leave a Trip Report with an attached GPX file.

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