Calahorra is a municipality in the comarca of Rioja Baja, near the border with Navarre on the right bank of the Ebro. The city is located on a hill at an altitude of 358 metres at the confluence of the Ebro and Cidacos rivers. Calahorra is the second-largest city in La Rioja in population and importance, after the capital, Logroño. Its population is at 24,000 inhabitants. read more…