Sarn Ford was the stone ford on the River Baranduin, on the far southern borders of the Shire. It was guarded by the Rangers of the North. However, on September 22, T.A. 3018, the Rangers were driven off by the arrival in the evening of the Ringwraiths.
A road beginning at Michel Delving crossed the ford, which met the Greenway further south. By this road Khamûl the Ringwraith entered the Shire during the War of the Ring.