Massif of Peñacorada Nature · Cistierna, La Montaña de Riaño, León Image of Cistierna, not of the place itself. A limestone barrier dominating the municipality with elevations between 1,600 and 1,835 metres and with the Pico Moro reaching 1,779; the Esla skirts it from north to south on its way to the León plain. Photo: Fundación Joaquín Díaz (CC BY-SA 3.0) What to see and do in Cistierna