Birch grove of Canencia Nature · Canencia, Sierra Norte, Madrid Image of Canencia, not of the place itself. Beside the Canencia pass, at 1,524 metres, the Sestil del Maíllo stream waters a wood of a kind rarely seen in Madrid, where birches mingle with oaks, hollies and yews; the ecological path that runs through it passes the Mojonavalle waterfall. Photo: Nelson Benítez (CC BY-SA 2.0) What to see and do in Canencia