 The city lies upon the Midlands Plateau at 163 m (535 ft) above sea level.There are no major rivers within the city, although the River Penk and River Tame (tributaries of the River Trent) rise in the city, as does Smestow Brook, a tributary of the River Stour, and thence the River Severn.This means that the city lies astride the main east-west watershed of England.