Lake DeForest

Lake DeForest
Lake DeForest viewed from nearby High Tor, a summit of the northern Hudson River Palisades.
Lake DeForest
Lake DeForest
LocationClarkstown, New York,
United States
Coordinates41°09′21″N 73°57′30″W / 41.1558°N 73.9584°W / 41.1558; -73.9584 (Lake Deforest)
TypeReservoir
Primary inflowsHackensack River
Basin countriesNewark Basin
United States
Surface area744 acres (301 ha)
Surface elevation79 ft (24 m)

Lake DeForest, also called DeForest Lake,:195–213 is a reservoir in Clarkstown, New York, created in 1956 by impounding the Hackensack River, which is a principal part of the water supply for Rockland County, New York and Northern New Jersey, mainly Bergen and Hudson counties. The reservoir is owned and operated by Suez North America, and is the most upstream of its reservoirs along the river's watershed, the others being Lake Tappan, the Woodcliff Lake Reservoir, and the Oradell Reservoir. It has a storage capacity of 5.6 billion gallons. Swimming and bathing are prohibited because the water is reserved for potable use.:212 The lake is traversed by a causeway carrying Congers Road (CR 80).