Night was waning on the twenty-second day of September when drawing together again they came to Sarn Ford and the southernmost borders of the Shire. [The Nazgûl] found them guarded for the Rangers barred their way. But this was a task beyond the power of the Dúnedain; and maybe it would still have proved a even if their captain, Aragorn, had been with them. But he was away to the north, upon the East Road near Bree; and the hearts even of the Dúnedain misgave them.
- The Unfinished Tales (Part 3), The Hunt for the Ring
Guarded by the Rangers of the North, Sarn Ford lies on far the southern border of the Shire. It is the stone ford of the River Baranduin.