Mountain range of Santo Domingo Nature · Biel, Cinco Villas, Zaragoza The Sierra de Santo Domingo y Lucientes is a range of mountains and sheer crags in the Aragonese Pre-Pyrenees, stretching from the Cinco Villas, in the province of Zaragoza, to the province of Huesca. Oriented from west to east, it receives humid Atlantic currents, and its highest peak is Santo Domingo, at 1,520 metres, located within the municipal area of Longás. On 3 July 2009 the town councils of Longás, Biel and Luesia asked the Government of Aragón to declare it a protected landscape, with the support of the Comarca de las Cinco Villas; if accepted, the protected area would reach 13,560.62 hectares, the first in the comarca to obtain this status. Photo: KatiaMO (CC BY-SA 4.0) What to see and do in Biel