Nashua River Rail Trail – Nashua River Rail Trail loop from Groton

Routes

Mountain biking trails

Nashua River Rail Trail – Nashua River Rail Trail loop from Groton

Easy

4.9

(9294)

10,736

riders

Nashua River Rail Trail – Nashua River Rail Trail loop from Groton

01:31

29.0km

100m

Mountain biking

Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: August 3, 2026

Waypoints

Start point

Parking

Get Directions

696 m

Knowles Siding Conservation Area

Highlight • Forest

This stretch of conservation land abuts the Nashua River Rail Trail. You're free to explore the land if you want to hop off your bike, but it's kept in such …

Tip by

3.73 km

Nashua River Rail Trail

Highlight (Segment) • Cycleway

There is a nice, new, and large parking lot at the Ayer end. It crosses a few busy roads, so be aware of this if you bring young kids.

Tip by

8.15 km

Nashua River Rail Trail

Highlight (Segment) • Cycleway

The Nashua river rail trail is a paved green way over an old rail way where one can have a pleasant bicycle ride while enjoying the quiet surroundings.

Tip by

13.9 km

Nashua River Rail Trail

Highlight (Segment) • Cycleway

The Nashua River Rail Trail is a paved trail that was constructed on an old railbed. It is completely traffic free, so it is a great place to do training runs.

Tip by

14.5 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

18.6 km

Nashua River Rail Trail

Highlight (Segment) • Cycleway

The Nashua River Rail Trail is a paved trail that was constructed on an old railbed. It is completely traffic free, so it is a great place for a relaxed walk.

Tip by

29.0 km

End point

Parking

Way Types & Surfaces

Way Types

28.9 km

121 m

< 100 m

Surfaces

23.3 km

5.70 km