CRW Rides are open to members and limited guests. Guests may only attend two rides during the calendar year.
All riders (both Members and Guests) must REGISTER

Guests register here:

Members register here:

If a rider has not pre-registered, that rider must do so online at the start of the ride. 

The online registration will include a liability waiver that all riders will need to review and accept. 

The online registration will also require all riders to review CRW’s Safety and COVID Guidelines and to agree to follow those guidelines on the ride.


Town maintained dirt roads, conservation jeep trails, and paved roads in Groton.
Bring your gravel or mountain bike. More miles on the pavement but more time on the dirt.
No food stops on route so bring food and water. Should take about 3 hours.
Any questions call or text gene at 617-610-1875 or email

Date: Saturday Jul 10, 2021
Ride Leader(s): 
Ride type: 

Click HERE for descriptions of the ride types.


Routes and Cue Sheets from RWGPS

Miles Elevation Print Download
25 994 ft Cue sheet GPX

Ride Start

Nashua River Rail Trail

0 Station Avenue
Groton , MA

From I-495, take exit 31 to Rt 119 West and continue for about 7.0 miles to Groton center. Turn left onto Station Avenue before Groton Town Hall, drive to the end and park alongside the Rail Trail. Or take the Fitchburg commuter rail line to the Ayer station, then the trail: schedule is here:


registered riders