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Seneca Creek Greenway Lower Trail is a 11.5 mile lightly trafficked point-to-point trail located near Poolesville, Maryland that features a lake and is good for all skill levels. The trail offers a number of activity options and is best used from March until November. Dogs and horses are also able to use this trail.

Length 11.5 mi Elevation gain 669 ft Route type Point to Point
Dog friendly Kid friendly Backpacking Hiking Horseback riding Nature trips Paddle sports Snowshoeing Walking Bird watching Running Event Forest Lake River Views Wild flowers Wildlife
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Getting There

The Seneca Creek Greenway Trail follows Great Seneca Creek in Montgomery County. It is a wooded, natural surface trail that extends from the Potomac River to the Damascus Regional Park trail system.The trail is intersected by several roads, most of which have areas to park. Parking locations are noted on the map. Using these crossroads, you may tailor the distance of the hike. You may choose an out-and-back hike or a point-to-point hike if you have two cars. Some sections of the trail allow horses and bikes and some do not. This is the lower section of the trail. It extends from the Riley's Lock trailhead on the Potomac River to the crossing at Riffleford Road, which is off of Rte 28 near Darnestown. This section is about 11 miles long. Some of the trail is on the Seneca Creek floodplain and can be very muddy after a rain or a thaw.

Maryland Department of Natural Resources (DNR)

The trail follows Great Seneca Creek and nearly bisects Upper Montgomery County, Maryland, starting at the Potomac River. There are multiple trailheads where the trail crosses roads. Trailheads are located at Riley's Lock, Seneca Road, Berryville Road, Route 28, Black Rock Road, and Riffleford Road. To reach Riley's Lock from Interstate 270, take the Route 118 exit in Germantown, MD. Turn left on Route 28. Turn right onto Seneca Road at the next traffic light. After Seneca Road merges with River Road, look for Riley's Lock Road on the left. Go to the end to the parking area. Cross Great Seneca Creek to begin the hike.

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Reviews (62)
Photos (226)
Recordings (79)
Completed (94)
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Sophia F
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I did this one in 2004. I remember it having lots of spider webs. It's also where the Blair Witch Project was filmed.

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Jill Pietropaolo
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Hiking

I did the 1.3 miles out and back between Seneca Rd and Berryville Rd. Nice trail, few other parties hiking & running.

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Phill Wadsworth
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Hiking

Nice to be on a trail for hikers and not mtn bikes. Lots of leafs have fallen and watch your footing. Phone ran out of juice so missed the last part of this hike.

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Jessica Brown
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Hiking

Last time, I hiked this trail, it was in May. While it was humid that time, today the air was cooler and the trail wasn't as muddy as last time. Our group went off the path a bit to make a pit stop at a nearby winery before heading back.

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Jessica Brown
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Hiking

Trail was muddy due to a strom from last night. The weather was a bit humid and skies were overcast. But it was still a nice hike including a stop at a nearby winery. The hike was pretty easy despite the mud and a river crossing.

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Angela Rotter
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Running

I have been running different segments of this trail for the past couple of months now without incident. Today I ran 118 towards Riffleford Rd and encountered several snakes in one particular stretch. Yikes ! One was even coiled. I was unable to identify them as I ran out as fast as I could. Incentive to kick it up more hey ? I would recommend going off the trail following another trail up in the field. I am not sure if it connects back to the blue blazes though. I will try to download the tracker map if I can figure it out. I Will not be returning to this particular leg but love love love this trail in general.

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Chris Snook
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Hiking

Took our 4 month old pup from Berryville Rd to the Potomac. Good short hike. Saw one group of people on the trails the whole time which was nice.

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James Wilkinson
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Hiking

Walked from C&O Canal (Riley's lock) to Berryville Rd. The C&O parking area and Seneca creek mouth are crowded! But plenty of parking; and a functional water fountain right at the canal. The trail portion from C&O canal to River Road isn't clearly marked - going North along canal, cross the creek, and suddenly a footpath appears on your right that crosses the Canal. Follow it a bit, and and old mill ruin greets you, along with a 0milepost for the Greenway. The Greenway then follows a gravel country road along Seneca Creek; which is not really a hike in my book; hence only 4 stars. Once crossing River Road, the trail is on the hardtop River Road to cross the creek, then an immediate Left onto Old Seneca Road--not really pleasant as you're on asphalt for another quarter mile or so. There are blue poles that evidently serve as blazes along the shoulder til the trailhead on the left takes the path back into the woods. Big sign, can't miss it - also room for a car or two to park on the shoulder opposite the trailhead. The 1.3 miles to Berryville road are terrific --easy, fast hiking, a few bridges and lots of seclusion. Enjoyed it and will go back to do the rest of the lower portion up to Rt 28, and then finish the middle and upper portions including the Magruder Trail connections.

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Becky Foreman
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarGray StarGray StarMay 25, 2015
Hiking

Walked this today from Black Rock Mill Road to The Potomac River. Well marked and easy to follow, though a bit weedy in places. Saw only two other people on the entire stretch even on this holiday weekend. More surprisingly, saw no canoes or kayaks until I got within a 1/2 mile of the mouth of Seneca Creek at Seneca Landing. Saw a couple deer, squirrels, and a chipmunk. The chorus of singing birds all along this trail are a treat. Have now walked The Seneca Greenway Trail in two sections on two consecutive days from Rt. 355. Considering this trail's proximity to the DC metro area, it's surprisingly rural, woodsy, and, amazingly, very few road crossings. If you're looking for a trail to find some solitude without making a long drive to get there, this trail is a good choice.

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Glow Ing
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarMay 5, 2013
Hiking

Great place for a variety of activities. As in the other review I didn't see any canoeing. Lots of beautiful scenery and places to stroll. Dog friendly, a definite plus. For those interested in group sports or working out, there are lots of options. Signs could be a little more detailed and visible as it is a little difficult to find the routes you're looking for on the first visit. Well manicured and not too infested with bugs flying around.

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Anni Han
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Hiking
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Jacklyn Rinaldi
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Hiking
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Emily Sara
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Hiking
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Emily Sara
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Hiking
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Kristina Pappalardo
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Hiking
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Marisa Gudrā
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Hiking
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Barbara Blaylock
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Tom Jones
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Hiking
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Mike Apollo
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Hiking
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K Ander
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Hiking
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Mike Apollo
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Hiking
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Matthew Rice
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Hiking
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K.M. Winters
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Hiking
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Adrianne Brakefield
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Hiking
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Karen Young
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Hiking
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Krissy Govertsen
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Hiking
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David Kay
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Hiking
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Charles Oliver
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Running
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Charles Oliver
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Running
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Hugo Mogollon
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Hiking
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