New York State Route 58 New York State Route 58 New York State Route 58 (NY 58) is a north–south state highway located in St. Lawrence County, New York, in the United States. The highway runs in a northwest to southeast direction as it traverses the county. The southern terminus of the route is at a junction with NY 3 in the hamlet of Fine within the town of the same name. Its northern terminus is at an intersection with NY 37 near the St. Lawrence River in the village of Morristown. Part of NY 58 passes through the Adirondack Mountains. NY 58 begins at
New York State Route 9B in the mid-1940s to bypass Rouses Point to the west and proceed north through the village of Champlain on its way to Canada. Its former alignment to Rouses Point was redesignated as NY 9B, which initially continued north along Lake Street to the Canadian border by way of an overlap with US 11. The overlap remained in place as late as 1979; it was eliminated by 1993. New York State Route 9B New York State Route 9B (NY 9B) is a state highway located within Clinton County, New York, in the United States. The route serves as a connector between