Question: Where in New York is the highway that ends at the toll barrier for Heckscher State Park in Great River?
Sentence (from "Great River, New York"): Great River, New York is a suburban hamlet and CDP in the Town of Islip, Suffolk, USA situated approximately 50 mi (55 mi driving) east of NYC on South Shore of L.I., adjoining the Great South Bay, protected from the Atlantic Ocean by Fire Island.
Relevant evidence: Yes