The NRWA's headquarters are located at our River Resource Center, 592 Main Street in Groton, MA. We are open to the public Monday through Friday from 8:30 A.M. to 4:30 P.M.

NRWA River Resource Center 592 Main Street Groton, MA Hours: Monday through Friday 8:30 A.M. to 4:30 P.M. Directions

Along with staff offices, the River Resource Center is home to:

• The Bill Farnsworth Conservation Clearinghouse, providing public access to a wide variety of information about the Nashua River watershed
• The NRWA's Geographic Information System (GIS), providing mapping capabilities as part of the Clearinghouse
• A large room for programs or meetings (call for rental information)
• A Nature Trail on the River Resource Center property

Directions to the NRWA River Resource Center

From Route 2 traveling west:
At the Concord rotary, take Route 2A/119 west. Follow through Acton and Littleton. Cross over Route 495 and continue through Groton center. The River Resource Center is approximately 1.5 miles from Groton center, on the right side of the road just before the bridge over the Nashua River. Look for a brown building with a flagpole and sign in front.

From Route 495:
Take Exit 31 (Littleton Common/Route 119). Take Route 119 west towards Groton and continue through Groton center. The River Resource Center is approximately 1.5 miles from Groton center, on the right side of the road just before the bridge over the Nashua River. Look for a brown building with a flagpole and sign in front.

From Route 2 traveling east:
Take Route 495 North to Exit 31 (Littleton Common/Route 119). Take Route 119 west towards Groton and continue through Groton center. The River Resource Center is approximately 1.5 miles from Groton center, on the right side of the road just before the bridge over the Nashua River. Look for a brown building with a flagpole and sign in front.

From Route 290/190 traveling north (from Worcester area):
Take Rt. 190 north until it intersects with Rt. 2. Take Rt. 2 east and take the Rt. 110/111 exit (Exit 38 going north to Ayer). Stay on Rt. 110/111 until you come to the rotary in Ayer. After entering the rotary, take the third right exiting the rotary which takes you into and through downtown Ayer. After you have gone through the main downtown area, take a right on Rt. 111/2A. Take another right on Rt. 111 (Rt. 2A and Rt. 111 split around a little diner called Tiny's- Rt. 111 goes to the right of Tiny's and Rt. 2A goes off to the left). Stay on Rt. 111 until you reach Groton center (Rt. 119). Take a left on Rt. 119 going west. The River Resource Center is approximately 1.5 miles from Groton center, on the right side of the road just before the bridge over the Nashua River. Look for a brown building with a flagpole and sign in front.