The river that powered a town
For centuries the River Roe did the work of Limavady. Its fast, reliable flow turned the wheels of water-powered mills strung along the gorge — beetling, scutching and weaving the flax that made this one of the most important linen districts in the county. The ivy-clad stone shells you pass on the walk are what's left of that industry, slowly being reclaimed by the woodland that grew up around them.
The river's most surprising chapter came in 1896, when a local man, John Edward Ritter, harnessed it at the Dogleap to generate electricity — said to be the first hydro-electric power scheme in Ireland, and the reason Limavady was lit by the river long before many bigger towns had power at all. The little power house kept the lights on until 1965, and still stands beside the water today.
The whole valley became a country park in the care of what is now the Northern Ireland Environment Agency, so the mills, the weirs, the leats and the woodland are all protected and open to wander for free. The Green Lane Museum, tucked into the old mill buildings, keeps the story going with tools, photographs and everyday objects from the Roe Valley's rural and industrial past.