Mountain range of la Osa Nature · Valdemanco del Esteras, Valle de Alcudia, Ciudad Real Image of Valdemanco del Esteras, not of the place itself. Mountain range south of the municipal boundary, reaching 853 metres in altitude, in an extremely mountainous landscape of valleys and river plains. Its highest point, the cerro de la Osa, lies on the boundary with the municipality of Almadén; together with the sierras to the north of the municipality, it forms a range hovering around 750-850 metres in altitude. Photo: 19Tarrestnom65 (CC BY-SA 4.0) What to see and do in Valdemanco del Esteras