Calatayud is a city in the province of Zaragoza, in Aragon, Spain. It is located 85 km from Zaragoza and approximately 230km from Madrid. It is the fourth largest city of Aragon, after the provinincial capitals, Zaragoza, Teruel and Huesca. The population is around 18,000 and Calatayud is at an altitude of 530 metres on the river Jalon.
