See reviews below to locate a trail map. You need a trail map, it is very confusing to attempt to stay on the trail. There are some pretty spaces along the route and a lot of horse manure to avoid. This loop seems to include some other trails. Blockhouse trail has a dead end at some point where there is a cliff, it is an old military site.

Great for distance, and a hard run. Definitely a moderate hike. Mainly flat on C&O canal. Took us about 3 hrs and was quite enjoyable with our dog.

trail running
11 months ago

One awesome 10K+ trail (~7 miles); this is a true trail runners trail. It has at least two pit stops (porta-johns) along the way that are well maintained and much welcomed. My TT is different from my moving time, as I made a few wrong turns here and there. This course has it all to a total "T", including path, single track, double track, gravel, mud, road, climbs, stream crossings, grasslands, obstacles, you name it! The entire course is not exactly flat-n-fast, but you can definitely get some speedwork in. The terrain is fun and ultra-dynamic, and the finish is spectacular! Oh my...what a challenge at the end! My goal was to finish the run at 5.8-6.0 mph, but finished @ 4 mph -- hey, when it is 87F at 10am, with an expected heat index of 105F, what else can you do but slow down?

I was saturated with sweat and pretty much beatdown at the halfway point going through the changeful terrain, and "knowed there was a God" when I saw one of those porta-johns. Check out my recorded track and the pics to avoid wrong turns. Great course for trail runners!

hiking
Monday, June 05, 2017

We walked along the Muddy Branch Greenway trail, and it was enjoyable. The main problem with this park is that there aren't loops, and the Blockhouse Point trails don't connect with the C&O trail to create loops to get back to your car. The map makes it look like the Greenway trail connects with a bridge over the canal so you can walk the C&O. In reality, the connection wasn't marked, and we had to walk maybe .5-.75 miles to get to the bridge at Lockhouse 22. It was a little confusing, but not too bad.

The bad part was that, based on the map, we thought we would find a bridge at Canyon trail to get us back over the canal and so we could hike to our car in the parking lot. Either we missed the bridge, or there isn't one. Instead, we walked 2.5 miles and made it all the way to Lockhouse 23 (Violettes Lock) which is well beyond the Blockhouse Point trails. We actually had to get an Uber to take us from Lockhouse 23 back to our car at the Blockhouse Point parking lot.

Saturday, April 08, 2017

Great 180 degree view of the Potomac from 150 feet up where point juts out into the river

trail running
Monday, December 05, 2016

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.

hiking
Saturday, December 03, 2016

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.

Saturday, November 26, 2016

Longer than 6.5 miles. Very nice long loop!

hiking
Friday, September 23, 2016

Trail was a bit confusing. Saw multiple bikers even though it says no bicycles. Best part would be not too much foot traffic and enjoyed the water ways.

hiking
Saturday, June 11, 2016

The section on the C&O canal was beautiful and full of wildlife! However, the linkups were incredibly confusing, and the trails were not very well maintained. At the west end of the canal, you have to walk down Violette's Lock Road, down a side road towards residential houses, and pick up an unmarked trail that weaves in and out of park land (sketchy).

hiking
Sunday, May 29, 2016

Easy hike. Not much of a view of the river if you just walk down the clear cut.

But a decent view of the Potomac from the rocks. If you take the trail to the right that is about halfway down the clear cut. Little bridge to cross to get to it.

hiking
Sunday, March 27, 2016

Amazing

Friday, December 25, 2015

Blended the woodsy trails with the C&O on a balmy December day. It was absolutely beautiful and a great mix of easy walking and short climbs. We brought our 60lb shepherd mix and she had a blast. There are several trails in this part of the woods; I'd do this loop again and trade out some of the trails back to the car for a different view. We probably had a better view of the river since the leaves were off the trees but I'm sure it would still be pretty in spring/summer.

mountain biking
Saturday, November 14, 2015

Fun

hiking
Monday, August 31, 2015

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.

hiking
Monday, May 25, 2015

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.

It's an overall enjoyable series of trails. Well marked--just not anything special of note. It's a decent workout for a trail-run. Just don't expect to be wowed by anything.

hiking
Sunday, March 16, 2014

The scenery on this hike was pretty. It's dog-friendly and has a creek that crosses the path. That being said, the trails were really confusing to follow. It intersects a busy road twice and was not well marked.

hiking
Sunday, September 29, 2013

Pretty!!
Easy.
Confusing trails.

All Trails app has no data but a Track shows up. - Follow it, it's the best route.

Trail maps here:
http://www.montgomeryparks.org/PPSD/ParkTrails/trails_MAPS/trailmap_pdfs/blockhouse_trails.pdf

I mostly followed the Track above. I recommend following it - it's the best route if you want to avoid annoying River rd noise.

Blockhouse Point Park trails are well marked and have blue blazes. Western sections of the Track fall outside the park trail system.

Start: Pennyfield lock parking lot. Walk back north on Pennyfield Lock rd - look out for mowed path on left a short way up.

Pennyfield to River Rd Parking: Busy trail, well marked.

River rd to Callithea Trail: follow Track south on the pipeline gap to Upland Woods Trail and connect to Blockhouse Trail on any of the connectors (Fawn, Turkey Fan, Spring House).

DO take Blockhouse Trail to end, viewpoint for lovely views (not on the track). Double back to pick up Callithea trail.
DO take Paw Paw trail to end, viewpoint for gorgeous views. Double back to Callithea trail.
CAUTION: Cliffs on both of the viewpoints above. Exercise care with dogs and children.

TRAIL UNMARKED at the end of Callithea - follow well defined path on track to an obvious split in the path at a pretty glade (with old corrugated pipe). I made a left here. Path follows edge of C&O park territory to Violette's Lock rd.

Turn south on Violettes and east on towpath. This is a super pretty stretch. You can get down to the river with a little bit of scrambling to enjoy the rocks if the river is low ( be careful!).

hiking
Sunday, May 05, 2013

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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