Find the top rated walking trails in Monson, whether you're looking for an easy short walking trail or a long walking trail, you'll find what you're looking for. Click on a walking trail below to find trail descriptions, trail maps, photos, and reviews.
The Assabet River Rail Trail is varied and enjoyable. The tricky thing about it is that it exists as two disconnected sections, separated by 2 miles of fairly busy road that's only suitable for confident road warriors. And that's a shame because both sections are marvelous and have much to recommend them.
The northern section runs from South Acton, through Maynard, and barely into Stow. It passes right through downtown Maynard, where you can find some decent food options and a bike shop. Proceeding south, it turns into a wide, hard-packed dirt road, and then finally ends as a slightly rougher dirt path. You can also easily access the Assabet River Wildlife Refuge from here, which has miles of wonderful off-road bike paths.
The southern section starts in Hudson and passes through the eastern end of its downtown, where there are more services and some worthwhile shops, including a bike shop. As of 2025, this part also connects to a new 8-mile eastbound section of the Mass Central Rail Trail. But if you continue on the Assabet River Rail Trail, you'll climb up into Marlborough -- it's pretty consistently uphill as you head south, but it's good exercise and has at least one excellent view. The trail more or less ends in the center of Marlborough, near the library, and where there are a few more spots you can grab a bite or get a drink.
So although this one isn't a straight shot, it's easily the most pleasant way to tour these towns and see what they have to offer. I hope finish it some day, and make it a single continuous Acton-to-Marlborough trail it's meant to be.
The Nashua River Rail Trail is terrific. It's long, smooth, well-maintained, and beautiful. Since it lies in a relatively rural part of Massachusetts, I find it to be a lower-key ride than its eastern cousin, the Bruce Freeman Rail Trail, but still well-used. There's less to see and do along it, but that might be exactly what you're looking for. Wholeheartedly recommended.
As of 6/3/25 this trail is still closed south of 11th street.
There is a detour indicated, which we tried to follow, but quickly lost track of.
Found another way to access the trail further south, only to realize that we'd gotten onto the part of the trail that was officially closed.
I'm sure this will warrant a higher rating once it has re-opened, but we were more than a bit disappointed today.
I recently rode this on a cool day in May from Manchester to Willimantic and back, so right at 40 miles. The trail is well-maintained and foot/bike traffic was light, even though it was a holiday weekend. Very scenic for long stretches and low elevation gain. I rode a gravel bike with 45 mm tires. On a road bike with reasonable tires, this should be do-able (I saw a couple of them), but there is one rough section of about 100ft (30m) where you would need to walk. There is also one underpass that is dark enough to use a headlight...but it's passable if you slow down. There are a number of places to read about the history of the rail line, as well as a few locations with fix-it stations with bike tools and air pumps.
One final tip: Google maps takes you to an intersection on Colonial Road for the Manchester trailhead...the parking lot has a tiny sign that is easy to miss.
...we rode the western part... (is there a tool to edit a review?)
We rode the eastern part of the trail today, starting at the CT/MA border towards Douglas. The first 6-8 mls are well maintained and a good ride even with a street bike. Nice scenery, too. But then things get worse around Douglas. Rough surface with crushed stone, sand and deep puddles after a rainfall (like today). Looks like the track has not been maintained in a while and detoriates. A mountain bike is a big plus and highly recommended in some parts of the trail. Was a good ride though but do not expect a smooth one.
This is described as a 3.5 mile section but we only went about half way to the dam from the Stanley Mill. It is passable on bikes but has roots and larger stones along the stone path. It's really more a walking trail. The farm mentioned in the description was an interesting side visit and had very nice bath & water facilities. However, for a great biking experience the 10 mile section starting at Woonsocket is paved and a far more pleasant ride.
Just rode the trail south to the Sudbury line. The east west trail is finished to the west for another 8 miles. It connects to the Hudson Trail at the end.
I rode the Moosup Valley Rail Trail a few days ago from Moosup to Oneco. The trail is in excellent condition all the way, and beautiful! I rode 34mm knobbies, but would have had no trouble on 28 slicks. The only irritants were a guy on a motorized scooter in Moosup and 2 guys on screaming dirt bikes going the other way a bit farther along, but they passed quickly. In Sterling, dirt bikers had dug shallow ruts into a short stretch of path, diagonal to direction of travel, which made it bumpy but not hazardous. Otherwise lovely! I wish Rhode Island would step up to the plate and finish the connector to its Washington Secondary path.
I rode the entirety of the Southwick Rail Trail coming from the Farmington Canal in CT. The Farmington is in very good condition, the Southwick is in even better condition! There are mile markers every mile, the scenery is very peaceful and the trail is very flat making it an easy ride. I stopped as soon as I hit the Columbia Greenway but it is also a seamless transition to that trail as well.
I didn't notice any places to pull off for food but its a short trail so I don't consider that a negative. The trails that join this one really give you so many options for ride length or to visit the trail towns along the way.
I rode the entire northern section of the Farmington Canal Trail from Plainville into MA on a windy Easter Sunday. The trail itself is fully paved, in very good overall condition (there are a few bumps and cracks but nothing major). Simsbury offers a great stopping off point to get refreshments just a quick turn off from the trail. The scenery changes from light industrial parks, residential, marshes, a little farmland and some nice wooded areas.
I have one complaint that prevents this from being a five star trail. The signage could be better. There are times in the more urban areas that I lost the trail, a quick look at Google Maps got me back on and I never was too lost. There are a few signs that were helpful so just a few more would make this a five star trail.
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