The drained lagoon of Conquezuela Nature · Miño de Medinaceli, Tierra de Medinaceli, Soria Image of Miño de Medinaceli, not of the place itself. This karst wetland, famous for producing quality leeches for medical bleedings, was drained in the fifties by the Instituto Nacional de Colonización to gain arable land and to combat malaria. Photo: PePeEfe (CC BY-SA 3.0) What to see and do in Miño de Medinaceli