The River Bain is England’s shortest named river, just two and a half miles long as the river runs (or just over two miles as the crow flies). The river rises in Semer Water, and runs down to join the River Ure just north of Bainbridge. For the last mile before reaching Bainbridge the river runs through a steep sided valley, and it drops 140 feet in its short length. The river then passes along the eastern side of Bainbridge, running between the village and Brough Hill, the site of a Roman fort. The waters of the Bain power Low Mill, on the eastern side of the village, with its restored water wheel.