Lake Ronkonkoma (lake)

Lake Ronkonkoma
Lake Ronkonkoma Show map of Long Island Lake Ronkonkoma Show map of New York Lake Ronkonkoma Show map of the United States
Location	Suffolk County, New York, United States
Coordinates	40°49′42″N 073°07′18″W / 40.82833°N 73.12167°W / 40.82833; -73.12167 (Lake Ronkonkoma (lake))
Type	kettle lake
Primary inflows	groundwater
Primary outflows	underground
Basin countries	United States
Surface area	243 acres (0.98 km2)
Max. depth	95 ft (29 m)
Surface elevation	52 ft (16 m)

Lake Ronkonkoma is a freshwater lake in Suffolk County, New York. It is a kettle lake formed by retreating glaciers and is the largest freshwater lake on Long Island; it has a circumference of about 2 miles (3.2 km) and is 0.65 miles (1.05 km) across on average.^[1] The lake is owned by the Town of Islip under the terms of the Nichols Patent. The land around it is controlled by three town governments – Smithtown, Islip and Brookhaven. The separation originated because three different Native American communities claimed lands on different shores, and these claims continued when the tribes gave separate deeds to the land under their control. The name Ronkonkoma comes from an Algonquian expression meaning "boundary fishing-lake", also earlier written as Raconkumake and Raconkamuck.^[2]