From today's NY Times: Vermont Towns Try to Find Their Roads Less Traveled:
... a 2006 state law that gives Vermont’s cities and towns until early next year to identify all their “ancient roads.” At that point, they can add the elusive roads to official town maps, ensuring that they remain public, or turn them over to owners of adjoining land.
Unlike many other states, where towns automatically forfeit rights to roads that go unused for years, Vermont requires that they remain public until formally discontinued. That has brought fights between towns and landowners whose property abuts or even intersects ancient roads, with the towns eager to preserve public access for outdoor pursuits and the owners seeking clear titles and privacy.