page_title: Seaway Trail
section_title: Route description
hierarchical_section_title: Seaway Trail / Route description
caption_attribution_description: Westbound on Pennsylvania Route 5, part of the Great Lakes Seaway Trail and the Lake Erie Circle Tour, as shown here.
context_page_description: The Great Lakes Seaway Trail, formerly named and commonly known as the Seaway Trail, is a 518-mile National Scenic Byway in the northeastern United States, mostly contained in New York but with a small segment in Pennsylvania. The trail consists of a series of designated roads and highways that travel along the Saint Lawrence Seaway—specifically, Lake Erie, the Niagara River, Lake Ontario, and the Saint Lawrence River. It begins at the Ohio state line in rural Erie County, Pennsylvania, and travels through several cities and villages before ending at the Seaway International Bridge northeast of the village of Massena in St. Lawrence County, New York. It is maintained by the non-profit Seaway Trail, Inc.
  The Seaway Trail was first designated in 1978 as an 80-mile byway leading from the Seaway International Bridge to the Thousand Islands Bridge. It was extended southwestward across the state of New York in the mid-1980s and into Pennsylvania in 1996. The byway is recognized as a state scenic byway by both New York and Pennsylvania and was named a National Scenic Byway in two stages.
context_section_description: The interstate Seaway Trail extends for 64 miles (103 km) in Pennsylvania and 454 miles (731 km) in New York for a total of 518 miles (834 km). It traverses a total of 11 counties as it crosses the two states; however, all but one—Erie County, Pennsylvania—is located in New York. There, the Seaway Trail traverses the counties of Chautauqua, Erie, Niagara, Orleans, Monroe, Wayne, Cayuga, Oswego, Jefferson, and St. Lawrence.
caption: Reassurance markers for the Seaway Trail and the Lake Erie Circle Tour on PA 5 westbound
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