The Thames River, seen from the waterfront in New London, Connecticut
The Thames River , not to be confused with the River Thames , is a short river in the U.S. state of Connecticut . It flows south for 15 miles (24 km)[ 1] through eastern Connecticut. It goes from the joining of the Yantic and Shetucket rivers at Norwich to New London and Groton . The mouth is at the Long Island Sound .
Two historic forts that are now Connecticut State Parks are on the mouth of the river which forms New London habor. Fort Griswold is on the eastern Groton Heights . Fort Trumbull is on the New London side.
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41°18′08″N 72°04′46″W / 41.30222°N 72.07944°W / 41.30222; -72.07944