Question: Where in New York is the highway that ends at the toll barrier for Heckscher State Park in Great River?
Sentence (from "Sagtikos State Parkway"): It begins at an interchange with the Southern and Heckscher state parkways in the hamlet of West Islip and goes north to a large cloverleaf interchange with the Northern State Parkway in the town of Smithtown, where the Sagtikos ends and the road becomes the Sunken Meadow State Parkway.
Relevant evidence: No