Camporredondo is one of the oldest reservoirs in Spain — 1930, when concrete was still a novelty up here in the Palentian mountains — and it has had a long time to settle into its surroundings. The Carrión comes down off the slate tops of Fuentes Carrionas and fills it cold and clear. The trout grow large and correspondingly careful: the regulated zone runs a forty-centimetre size limit, which tells you the calibre of fish that turn up. It is no-kill on Mondays and Thursdays and shut a day or two more besides, so the fishing is rationed — which the trout appreciate even if you don't. Bank water for the most part, and fly fishing is welcome. Carp, barbel and pike share the reservoir, but the trout are the reason to make the drive.
- Reservoir
- Slate

