Class I Assabet River, MA

Located 25 miles west of Boston, the Sudbury, Assabet and Concord rivers are recognized for their outstanding ecology, history, scenery, recreation values, and place in American literature. Portions of the segments lie within Great Meadows National Wildlife Refuge, and among the many historic sites along the rivers is North Bridge at Minute Man National Historical Park in Concord, site of the revolutionary "shot heard 'round the world."

The rivers are managed by the National Park Service in cooperation with the SuAsCo River Stewardship Council, which includes members from local towns, state government, and advocacy groups.

rivers.gov/Assabet River