The Cerro Tiñoso (Mangy Hill) Nature · Renieblas, Frentes, Soria Image of Renieblas, not of the place itself. The municipal district, flat but raised above a thousand metres, culminates in the Cerro Tiñoso, of 1,233 metres, a height that dominates the corridor along which the national road between Soria and Ágreda runs. Photo: GFreihalter (CC BY-SA 3.0) What to see and do in Renieblas