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Routes
Hiking trails & Routes
United States
Massachusetts
Middlesex County
Ayer

Nashua River Rail Trail

Hard

2.8

(20)

67

hikers

Nashua River Rail Trail

16:34

64.8km

250m

Hiking

Hike the 40.2-mile Nashua River Rail Trail, a difficult route with 813 feet of elevation gain, offering diverse scenery through forests and

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

Get Directions

1

23.0 km

Nashua River Trailhead

Highlight • Trail

From here all the way south to Ayer, this 12.5 miles trail follows the course of the Nashua River through J. Harry State Forest. Calm and tree-dimmed light make the way a real treat.

Tip by

31.4 km

Nashua River Shoreline

Nature Reserve

42.6 km

Moors Schoolhouse

Ruins

4

43.7 km

Groton School Pond

Highlight • Lake

The Nashua Rail Trail passes right over Groton School Pond and its a popular resting place. Take a break for some peace and quiet in nature. You may see people …

Tip by

B

64.8 km

End point

Parking

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Way Types & Surfaces

Way Types

42.3 km

14.0 km

8.37 km

< 100 m

Surfaces

33.4 km

24.3 km

4.20 km

1.34 km

1.19 km

461 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (110 m)

Lowest point (50 m)

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Weather

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Tuesday 26 May

29°C

10°C

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This route was planned by komoot.

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Frequently Asked Questions

What is the terrain like on the Nashua River Rail Trail?

The trail is notably flat and predominantly paved with asphalt, making it accessible for various users. This consistent, gentle grade is characteristic of rail trails. For those who prefer a different surface, a parallel unpaved equestrian trail exists for about seven miles from Groton to Dunstable, and from Ayer to the New Hampshire state line.

Is the Nashua River Rail Trail suitable for beginners or families?

Yes, its flat, paved surface makes it ideal for hikers of all ages and abilities, including beginners, families with strollers, and wheelchair users. The gentle grade ensures an enjoyable experience for everyone.

Where can I park and access the trail?

Parking is available at multiple access points along the trail. The Ayer trailhead is particularly convenient as it's located near a commuter rail station, providing easy access from Boston.

Are dogs allowed on the Nashua River Rail Trail?

The research indicates the trail is multi-use, accommodating various users. While specific dog rules aren't detailed, most rail trails in Massachusetts allow leashed dogs. It's always best to check local signage for any specific regulations.

What is the best time of year to visit the trail?

The trail offers year-round enjoyment. Spring and summer are ideal for walking and cycling, autumn provides spectacular fall foliage views, and winter transforms it into a great spot for cross-country skiing.

Do I need a permit or is there an entrance fee for the J. Harry Rich State Forest section?

The Nashua River Rail Trail traverses sections of J. Harry Rich State Forest. Generally, Massachusetts State Forests do not require permits or charge entrance fees for day use, but it's always advisable to check the official Massachusetts DCR website for the most current regulations.

What kind of wildlife can I expect to see?

The trail offers numerous opportunities to observe wildlife, including beavers, herons, swans, bald eagles, owls, deer, turkeys, and various waterfowl. Beaver lodges can often be spotted in marshy areas.

What are some notable points of interest along the route?

Beyond its scenic beauty, you can enjoy views of Groton School Pond, known for its abundant fish, turtles, and birds. You'll also find historical remnants of the former Boston and Maine Railroad, such as concrete signal bases and granite mileage markers. Murals depicting local history can be found in underpasses, particularly in Groton, and a replica covered bridge near Pepperell adds to the trail's unique character.

Does the trail intersect with other paths?

Yes, the route also passes through sections of the Nashua River Rail Trail, Groton Tour, West Groton Tour, South Groton Tour, and Harry's Dark Forest River Trail.

Are there places to get refreshments or food nearby?

Yes, there are opportunities for refreshments in nearby towns like Groton and Pepperell, which are easily accessible from the trail.

What are the scenic highlights of the Nashua River Rail Trail?

The trail boasts a varied and picturesque landscape, passing through wetlands, ponds, woods, swamps, and farmland. The northern half is largely forested, including sections that run alongside the Nashua River and through J. Harry Rich State Forest. The southern half features agricultural fields, wetlands, and small ponds. Deciduous forests provide shade and spectacular fall foliage.

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