The Quinebaug River watershed covers 850 square miles (2,200 km2), and extends into western Rhode Island. It is heavily forested with 29 named streams including six major tributaries (the French, Moosup and Five Mile Rivers, and the Wales, Mill and Cady brooks). The watershed also contains 54 lakes and ponds, 31 of which with an area of 10 acres (40,000 m2) or more, for a total of about 3,000 acres (12 km2; 5 sq mi); the largest is East Brimfield Reservoir in Brimfield and Sturbridge, 420 acres (1.7 km2) in area. The watershed is home to fish species including trout, smallmouth bass, largemouth bass, northern pike, and panfish. Elevations range from 1,264 feet (385 m) above sea level on Mount Pisgah in Wales, Massachusetts, to about 25 ft (7.6 m) in Norwich, Connecticut.
Three sections of the Quinebaug River have been designated National Recreation Trails by the National Park Service, some of the first water trails to receive this designation. The sections are: Holland Pond to East Brimfield Reservoir (in Holland and Brimfield, Massachusetts), Paper Mill Dam in Dudley to West Thompson Lake, and Simonzi Park in Putnam to Aspinook Pond in Canterbury. The East Coast Greenway runs along the river in some spots.
Canoe/kayak launch sites are located at the following locations:
Pond Bridge Road, Holland
US Route 20 boat ramp, Brimfield
Old Mashapaug Road, Sturbridge
West Dudley Road, Dudley
Fabyan Road, Thompson
West Thompson Lake boat ramp, Thompson
Simonzi Park on Kennedy Drive, Putnam
Route 101, Pomfret
Riverside Park off Day Street, Brooklyn
Town Park off Route 12, Killingly
Quinebaug Trout Hatchery, Plainfield
Robert Manship Park off Route 14, Canterbury
Butts Bridge Road, Canterbury
Gallery
Brimfield Lake and Dam on the Quinebaug River in Hampden County, Massachusetts
Westville Lake and Dam on the Quinebaug River in Worcester County, Massachusetts
^U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National MapArchived 2012-03-29 at the Wayback Machine, accessed April 1, 2011