Rockland Lake State Park is a 1,133-acre (4.59 km2) state park located in the hamlets of Congers and Valley Cottage in the eastern part of the Town of Clarkstown in Rockland County, New York.[4] The park is located on a ridge of Hook Mountain above the west bank of the Hudson River. Included within the park is the 256-acre (1.04 km2) Rockland Lake.[2]