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, United States. 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.

Congers is a suburban hamlet and census-designated place in the town of Clarkstown, Rockland County, New York, United States. It is located north of Valley Cottage, east of New City, across Lake DeForest, south of Haverstraw, and west of the Hudson River. It lies 19 miles (31 km) north of New York City's Bronx boundary. As of the 2020 census, the population was 8,532.