The Charles River is fed by approximately 80 streams and several major aquifers as it flows 80 miles (129 km), starting at Teresa Road just north of Echo Lake (42°12′54″N 71°30′52″W / 42.215°N 71.514444°W ) in Hopkinton, … See more

Pre-colonial
Long before European settlers named and shaped the Charles, Native Americans living in New England made the river a central part of their … See more

• Geography portal
• Head of the Charles Regatta
• List of Charles River boathouses
• List of crossings of the Charles River
• List of rivers of Massachusetts See more

• The Esplanade Association
• Charles River Watershed Association
• Charles River Conservancy
• MA Department of Conservation and Recreation - Charles River Reservation See more

The river is busy, apart from the winter months, with rowing, sculling, canoeing, kayaking, paddleboarding, dragonboating, and sailing, both recreational and competitive. Most of … See more

Fish
The Charles River is home to a wide range of freshwater fish species and some diadromous species. There are over 25 species able to be found in the Charles and some of the most common freshwater fish include the … See more

• Inventing the Charles River, by Karl Haglund, MIT Press, 2003, in collaboration with the Charles River Conservancy. ISBN 0-262-08307-8 See more