River Recreation Maps

While practicing safe distancing, we encourage you to get outside. A little time in nature, on and along our rivers, will bring you comfort and inspiration.

For exploration ideas, go to our online Assabet, Sudbury, and Concord River recreation maps! You will find river access points, walking trails, and bike paths.

When boating, please follow the State COVID-19 Boating Guidelines.

Look for our maps in local libraries, town offices, outdoor stores, and at the Assabet River National Wildlife Refuge Visitor Center. If you have trouble finding them, please email OARS.

Most of the Assabet, Sudbury and Concord Rivers are classified as flatwater/quietwater. There are some Class I/II rapids in Maynard that can provide a challenge for beginner whitewater boaters. The Concord River in Lowell has three Class III/IV rapids (Twisted Sister, Three Beauties, and Middlesex Dam); there are whitewater rafting trips available in the spring. Put-ins are located throughout the watershed and are shown on the recreation guides, which can help you find the best ways to safely navigate the rivers.

Information about fishing on our rivers.

The Concord, Sudbury and Assabet Rivers
A guide to canoeing, wildlife and history
by Ron McAdow

Ron has written one of the best guides to the Assabet River in this handy and informative book. Each river is covered from headwaters to end point, with put-ins, places of interest, suggested outings, and natural history woven together with wonderful illustrations by Gordon Morrison.
The guide is available from the Sudbury Valley Trustees.

AMC River Guide
Massachusetts, Connecticut, Rhode Island
AMC's guides are well respected and this one is no exception. Now in its third edition the guide provides lots of useful information about navigating the rivers of New England, including the Assabet River.
This guide is available from the Appalachian Mountain Club, local bookstores and outdoor shops.

AMC Quiet Water Canoe Guide
Massachusetts, Connecticut, Rhode Island
Like its sister publication, the AMC Quiet Water guide provides detailed information about area ponds, lakes, and reservoirs. The Assabet Reservoir in Westborough (the headwaters of the Assabet River) is featured in this guide.
This guide is available from the Appalachian Mountain Club, local bookstores and outdoor shops.