The Aithouse Burn, the Howpasley Burn, and the Northhope Burn (amongst others) are some of the feeder burns for what becomes the Borthwick Water at Craik, in the heart of the Craik Forest. The Water continues via Meadshaw, Muselee, and Deanburnhaugh, to Burnfoot and Roberton until it joins the Teviot at Borthaugh and Martinshouse, at the end of the B711, and less than 2 miles from the centre of Hawick.