New York State Route 308 (NY 308, Route 308) is a short road in Dutchess County, New York. The highway is long. It goes through mostly rural areas, and is usually used as a shortcut from U.S. Route 9 (US 9) to New York State Route 9G. The road passes several landmarks along its path. The road began its history in about 1685, when a group of Native Americans built the Sepasco Trail. This trail went from the Hudson River to Lake Sepasco, and followed the same path that currently exists as Route 308. The trail was there until 1802, when part of the Ulster and Delaware Turnpike was built over it. Route 308 was officially formed in 1930.