Rock-cut hermitage of San Miguel de Presillas Monument · Alfoz de Bricia, Las Merindades, Burgos A church carved into the rock by early medieval communities in the locality of Presillas, one of the rock hermitages that dot the north of Burgos and evidence of the settlement earlier than the Castilian county. Photo: Joxemai (CC BY-SA 3.0) What to see and do in Alfoz de Bricia