The main tributaries of the Penk, travelling south from its confluence with the Sow, are: • the
Deepmoor Drain, a canalised brook which collects the water from a network of brooks and drains to the east of the lower Penk, and runs parallel to it for several kilometres, before emptying into it just before its confluence with the Sow. • the
Rickerscote Drain, which performs a similar function in the marshy areas to the west of the Penk, running roughly parallel to it, and channelling the waters of the Rising Brook, the Silkmore and the Pen Pleck Drain into the river. • the
Pothooks Brook, a small river that originates to the north-west of Penkridge. • the
Whiston Brook, which joins the Penk just above Penkridge, and channels into it the waters of the Longnor, Church Eaton and Wheaton Aston Brooks, draining an area that extends into Shropshire in the west. • the
Saredon Brook, which drains a substantial area to the east, around Cheslyn Hay and Great Wyrley, and joins the Penk north of Coven. • the
Watershead Brook, which joins the Penk just south of Coven, and drains the
Fordhouses and
Bushbury areas of Wolverhampton. • the
Moat Brook, which channels water from numerous smaller brooks and drains around
Oaken,
Codsall and
Bilbrook, and joins the Penk by the
Pendeford Mill Nature Reserve. == References ==