Black Hall River
Black Hall River is a river in the state of Connecticut, United States of America. It joins the Back River at Great Island in Old Lyme, where they enter Long [Island Sound]. The river is situated near the mouth of the Connecticut River. It has been described as a scenic river that flows through a marshy rural area that has a large presence of wildlife.
The name Black Hall is derived from Black Hole, a cave which housed a black employee of one Matthew Griswold in 1645.
The Blackhall is one of southern New England's recreational flatwater kayaking rivers.