0 the sport or activity of running up and down hills and high land, especially in northwest England:
Fell running is a gruelling sport but it offers the best way to unlock the secrets of Cumbria's mountains.
Fell running can of course be enjoyed alone but there are also a number of events taking place in the Lake District.
The main trouble with fell-running lies in the fact that, having run up a mountainside, you have to run down.
This year, she won the British Fell Running Championships for the fifth time.
