[DOC] [TLE] Charles River - Wikipedia [PAR] The Charles River is an 80 mi (129 km) long river in eastern Massachusetts. 
From its source in Hopkinton the river flows in a northeasterly direction (after ... 
The river opens into a broad basin and is lined by the parks of the Charles River 
... mills along the 9.5-mile (15 km) tidal estuary from Watertown Dam to Boston 
Harbor. [DOC] [TLE] Mystic River - Wikipedia [PAR] The Mystic River is a 7.0-mile-long (11.3 km) river in Massachusetts, in the United 
States. ... Encompassing 76 square miles (200 km2) of watershed, the river flows 
from the ... The river joins the Charles River to form inner Boston Harbor. ... 44 
lakes and ponds, the largest of which is Spot Pond in the Middlesex Fells, with an
... [DOC] [TLE] Charles River [PAR] Located in eastern Massachusetts, the Charles River is a small American ... The 
Charles River, although relatively small, is the longest river entirely within 
Massachusetts. ... through fifty-eight cities and towns before emptying into Boston 
Harbor. ... flow, the river water is brownish green in color because it literally 
steeps like... [DOC] [TLE] J! Archive - Show #4490, aired 2004-02-27 [PAR] In April 1990 he played live to a world record 184,000 people at Rio de Janeiro's 
... This river that flows into Boston Harbor is the longest river entirely within... [DOC] [TLE] The Charles River, Eastern Massachusetts: Scientific Information in ... [PAR] the factors exacerbating low summer streamflows in headwater areas of the 
watershed. ... Fish communities and habitat qualityThe Charles River 
watershed ... in Hopkinton, Massachusetts to its mouth at Boston Harbor. (fig. 1). 
The longest stream entirely within the Commonwealth .... estuary into a 
freshwater basin and. [DOC] [TLE] Charles River | river, Massachusetts, United States | Britannica.com [PAR] River, eastern Massachusetts, U.S. It is the longest river wholly within the state, ... 
in Hopkinton, southern Middlesex county, to its mouth on Boston Harbor. [DOC] [TLE] 12 Incredible Rivers In Massachusetts - Only In Your State [PAR] Mar 31, 2016 ... One of the most famous small rivers in U.S. history, the Concord River was the ... 
though 23 Massachusetts cities and towns before flowing into Boston Harbor. ... 
The Connecticut River is the longest river in New England. [DOC] [TLE] Character & History - Mass.Gov [PAR] toric Charles River Dam to the Boston University Bridge; the Middle ... eighty 
miles in length it is the longest river entirely within the borders of Massachusetts. 
Twenty dams control the flow of the ... waters of Boston Harbor. ... Massachusetts 
Institute of Technology define its ... nothing less than a great cesspool, into which
. [DOC] [TLE] 17 Lesser Known Rivers in the United States You Should Cruise at ... [PAR] It begins in the Rocky Mountains and flows for nearly 1500 miles through ... And 
the outer Boston Harbor has several rivers that empty into it including the ... The 
Charles River is a rather small river that is located entirely in Massachusetts. ... 
The Missouri River is 2341 miles long and is the longest river in the United States
. [DOC] [TLE] HSB41 - Changing Course: Shaping The Environment [PAR] In comparison, the Boston marathon covers the route from Hopkinton to ... The 
Charles is, for most of this distance, a rather small stream, with a slow 
meandering flow. While it is the longest river entirely within Massachusetts, it is 
much smaller ... A 1999 aerial photograph of Boston, the harbor and the Charles 
River basin. [DOC] [TLE] Dedham Loop Water Trail : National Recreation Trail Database [PAR] Water Trail. Length, 7.20 Miles / 11.59 Km, Loop Trail? ... The Charles River flows 
80 miles starting at Echo Lake in Hopkinton, through 22 cities and towns in 
eastern Massachusetts before emptying into Boston Harbor. ... The Water Trail is 
located entirely in Dedham and is made a loop by Long Ditch, located in Cutler 
Park. [DOC] [TLE] Boston Harbor South Watersheds 2004 Assessment Report [PAR] Jun 30, 2004 ... Urban Harbors Institute, University of Massachusetts Boston ...

Question: This river that flows into Boston Harbor is the longest river entirely within Massachusetts
Answer: the Charles