Assabet River Rail Trail
Assabet River Rail Trail
4.8
(3267)
13,587
hikers
01:38
6.32km
30m
Hiking
Hike the easy 3.9-mile Assabet River Rail Trail, gaining 110 feet in 1 hour 37 minutes, with river views and wildlife opportunities.
Last updated: February 26, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Waypoints
Start point
Parking
Get Directions
760 m
Highlight • Structure
Tip by
1.36 km
Thanksgiving Pond
Lake
4.57 km
Highlight • Lake
6.02 km
Highlight • Bridge
Tip by
6.32 km
End point
Way Types & Surfaces
Way Types
6.00 km
319 m
Surfaces
6.05 km
107 m
104 m
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Elevation
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Weather
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Today
Thursday 9 July
33°C
18°C
31 %
Additional weather tips
Max wind speed: 16.0 km/h
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This route was planned by komoot.
Parking is available at various access points along the trail in towns like Marlborough, Hudson, Maynard, and Acton. Specific parking lots are usually well-marked at trailheads in these communities.
Yes, the trail is generally dog-friendly. However, please ensure your dog is kept on a leash and that you clean up after them to maintain a pleasant experience for all users.
The trail offers different experiences throughout the year. Spring and fall provide pleasant temperatures and beautiful foliage, while summer offers a shady canopy in wooded sections. Some unpaved parts, particularly in Stow, may have drainage issues after heavy rains, so consider avoiding those sections during or immediately after wet weather.
No, there are no permits or entrance fees required to access the Assabet River Rail Trail. It is free and open to the public.
The terrain varies along its length. Many sections are paved and flat, especially in Hudson, Maynard, and Acton, making them suitable for all users. Other parts, like the Stow section and within the Assabet River National Wildlife Refuge, feature hard-packed dirt and gravel. The Marlborough section is paved but includes some hilly portions, offering a moderate challenge.
The trail offers diverse scenery, from deep woods and river views to urban and residential transitions. You can enjoy frequent waterfront views of the Assabet River, especially in its midsection. Notable points of interest include the Assabet River Dam, Pond View on Assabet River Rail Trail, and the Mill Pond Footbridge and View. You'll also pass through downtown Maynard with its renovated 19th-century mill buildings.
As the trail travels alongside the Assabet River National Wildlife Refuge, you have good opportunities to observe wildlife and migratory birds. The refuge's wetlands, vernal pools, and forested habitats are home to various species.
Yes, many of the paved and flat sections, particularly in Hudson, Maynard, and Acton, are suitable for wheelchairs and strollers, offering an easy and accessible experience.
Yes, a significant portion of the trail borders or passes through the 2,230-acre Assabet River National Wildlife Refuge, providing access to additional hiking trails within the refuge. It also connects the communities of Marlborough, Hudson, Stow, Maynard, and Acton.
While there isn't always water directly on the trail, passing through downtown Maynard offers opportunities to find food options and other amenities. It's always a good idea to carry your own water, especially for longer excursions.
Absolutely. The trail follows the abandoned rail bed of the Marlborough Branch of the Fitchburg Railroad, which operated from 1850 to 1980. You can still spot reminders of its industrial past, and Henry David Thoreau even walked along these same railroad tracks in 1851.
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