Mystic River

The Mystic River is a 7.0-mile-long river in Massachusetts, in the United States. In Algonquan, missi-tuk means "large estuary," alluding to the tidal nature of the Mystic. The resemblance to the English word mystic is a coincidence, which the colonists naturally followed.

The Mystic River lies to the north of Boston and flows approximately parallel to the lower portions of the Charles River. Encompassing 76 square miles of watershed, the river flows from the Lower Mystic Lake and travels through the Boston-area communities of East Boston,
Chelsea, Charlestown, Everett,
Medford, Somerville, and
Arlington. The river joins the Charles River to form inner Boston Harbor. Its watershed contains 44 lakes and ponds, the largest of which is Spot Pond in the Middlesex Fells, with an area of 307 acres . Significant portions of the river's shores are within the Mystic River Reservation and are administered by the Massachusetts Department of Conservation and Recreation, which include a variety of recreation areas.

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