Nashua River Rail Trail

Parking areas for access to the trail are located in Ayer, Groton, and Dunstable. 

Ayer Center parking lot

Closed for construction.  For more information visit  https://www.ayer.ma.us/commuter-parking

Groton Center parking (Court Street 10-15 spaces)

Take I-495 north or south to exit 31, then Rte. 119 west approximately seven miles to Groton Center. Take left at Station Ave. to the on-street parking area beside the trail.

Groton Sand Hill Road parking (10-15 gravel spaces)

Take I-495 north or south to exit 31, then Rte. 119 west approximately ten miles. Take a right on Nod Road and right on Sand Hill Road. Follow Sand Hill Road to parking area on the right after crossing rail trail.

Dunstable state line parking (10 gravel spaces)

Take Rte. 3 to Exit 35, then Rte. 113 west beyond Dunstable Center. Take right on Hollis Street to New Hampshire state line. Parking is on the left.

• Cross-country skiing
• Horseback riding
• Running and walking
• Fishing

• Restrooms
• Scenic viewing area

• Accessible bike path

• No alcohol
• No littering

Trail etiquette

• Be courteous of other path users.
• Keep right unless passing.
• Stop at all stop signs.
• Trail is open dawn to dusk. If you have appropriate lights, ride at your on risk.
• Give a clear and audible signal before passing and pass only when it's safe to.
• Travel at a reasonable speed.
• Wear protective headgear. This is required by law for children 16 years and younger, but recommended for all.
• Respect private property next to the trail. 
• Carry in, carry out all trash and belongings.