Mountain range of Altomira en Vellisca Nature · Vellisca, La Alcarria Conquense, Cuenca Image of Vellisca, not of the place itself. The sierra de Altomira, also called sierra de San Cristóbal, is one of the westernmost ranges of the Iberian System and extends about 47 kilometres from north to south, between the provinces of Guadalajara and Cuenca, as far as the municipal area of Vellisca, where the Riánsares river rises. Its limestone-dolomite relief has served as a passageway for plant species between the Levante and the meseta, favouring the spread of Aleppo pine forests, black juniper scrubland and thermophilic rosemary scrub on low hills, the highest point of which is Altomira itself, at 1,183 metres. Vellisca sits on its eastern slope, in the transition zone between the Alcarria and La Mancha, within the comarca of the Alcarria Conquense. Photo: Raimundo Pastor (CC BY-SA 4.0) What to see and do in Vellisca