Moving initially northwards, the Rawthey picks up Whin Stone Gill in Uldale before skirting round Bluecaster, after which the river runs south-southwest through Cautley. The Rawthey is joined by the Clough River, coming from Garsdale, near Dowbiggin, and, having run past Castleshaw Tower, the River Dee close to Sedbergh.
The Rawthey river begins its journey northward, picking up Whin Stone Gill in Uldale before moving around Bluecaster. It then flows south-southwest through Cautley. The Clough River joins the Rawthey from Garsdale near Dowbiggin. After passing Castleshaw Tower, the River Dee joins the Rawthey near Sedbergh.