River Hiz

The River Hiz is a chalk river with a length of 13 km (8.1 mi). Its headwaters rises south of the village of Charlton, the river winds its way through the county of Hertfordshire, moving its way into and through a northeastern direction into Hitchin, to its confluence with the River Purwell, then flows north through its confluence with the River Oughton at Ickleford. The Hiz joins at its confluence of the River Ivel near the village of Henlow.