The Southern New England Trunkline Trail (or SNETT) is a rail trail in Massachusetts. The trail is designated for use by pedestrians, equestrians or non-motorized vehicles. Motor vehicles, including Off-Highway Vehicles (OHVs) are prohibited on the SNETT. The surface of the trail is gravel ballast. Between Central Street, Millville, and the Triad Bridges, a short side trail provides access to the Blackstone Canal's Millville Lock, the best preserved on the canal. The trail passes through the following towns in Massachusetts (from west to east).