Hertford from Source to River Derwent is a river in East Riding of Yorkshire

Hertford from Source to River Derwent is a river in East Riding of Yorkshire

Hertford from Source to River Derwent takes in water from an area around 45.225 km2 in size and is part of the Derwent Upper Yorkshire catchment area.

Hertford from Source to River Derwent is 16.003 km long and has been heavily modified by industry in the past.