The Sudbury River Floods 2023

Sudbury River, The South Bridge Boathouse, Concord, MA USA

The Sudbury River originates in the Cedar Swamp in Westborough, Massachusetts, and flows 32 miles to Egg Rock in Concord, where it joins the Assabet River to form the Concord River. The river's current path, along with the Assabet and Concord Rivers, can be traced back to the receding glaciers of 15,000 years ago.  It wasn't always called the Sudbury here in Ashland, and as late as 1854 it was actually penned as the Concord River on local maps of Ashland.