The Cares channel
History / Engineering
Between 1915 and 1921 the Sociedad Eléctrica de Viesgo cut eleven kilometres of channel to carry the waters of the Cares from Caín to the Poncebos power station. Seventy-one tunnels were bored by hand, more than 500 labourers worked on it and eleven lost their lives in accidents. The channel drops one metre every thousand: it surfaces and dives back into the rock again and again.
Tip
The path you are walking was born with the channel, though not as you see it: the original service track was cut during the 1915-1921 works, and between 1945 and 1950 it was widened to the two metres it has today. Spain's most famous route is, at heart, a service road.