New York State Route 30 is a north-south highway in St. Lawrence County. It runs from the St. Lawrence/Hamilton County Line, near Long Lake, to the St. Lawrence/Franklin County Line, near Tupper Lake. NY St Rt 30 passes through the following town in St. Lawrence County. Piercefield NY St Rt 30 is not multi-plexed in St. Lawrence County. NY St Rt 30 intersects the following highway in St. Lawrence County. New York State Route 421, at Piercefield.
