Fishing is allowed via nonmotorized boats on the Concord and Sudbury Rivers and from the launch areas. There is a boat launch off the Weir Hill Trail at the Sudbury Unit for Sudbury River access. There is a boat launch off Route 225 in Carlisle for Concord River access. All refuges, hatcheries and other Fish and Wildlife Service lands follow state and federal regulations.
- All anglers must comply with Massachusetts State fishing regulations including fishing licenses
- Fishing and swimming from any refuge pond, pool , stream or the impoundments is prohibited
- Catch and release only