The River Lugg (Welsh: Afon Llugwy), rises near Llangynllo, Powys. It flows through the borer town of Presteigne, Wales then through Herefordshire, England, including the town of Leominster, south of which it is met by a tributary, the River Arrow, then to a confluence with the River Wye, which it joins at Mordiford, 9 miles (14 km) downstream of Hereford and 45 miles (72 km) from its source.