Wikipedia EN River Lyd (Devon)
The Lyd is a river rising at Lyd Head (Corn Ridge in NW Dartmoor) in the Dartmoor national park in Devon in South West England and flowing into the River Tamar beyond Lifton. It runs through Lydford Gorge, the deepest gorge in South West England.
Source: Wikipedia https://en.wikipedia.org/wiki/River_Lyd,_Devon