The New York State Office of Parks, Recreation and Historic Preservation acquired the 794-acre (3.21 km2) Wonder Lake property in November 1998 using Clean Water/Clean Air Bond Act funds.[1] The park was expanded by the purchase of 106 acres (0.4 km2) of open space in February 2006[5] and was further expanded in 2010, bringing the park to its current size.[3] Prior to the 106-acre (0.43 km2) purchase, the tract was surrounded by private property with no public access.[6]