Rioturbio, a small hamlet, which takes its name from the stream next to it that flows from the Monte Corona forest and ends in La Rabia lagoon, is considered one of the main entrances of the Monte Corona forest and thus part of Oyambre’s natural reserve.
It contains several examples of traditional architecture, and a small hermitage devoted to San Miguel. This simple church has a rectangular floor plan. Its main façade is framed by ashlars windbreak walls. The Romanesque door has a Romanesque opening on either side and above is a circular window.