Why it belongs here
Serra Calderona (Valencian pronunciation: [ˈsɛra kaldeˈɾona]; Spanish: Sierra Calderona), often referred to as La Calderona is a 49 km (30 mi) long mountain range in the Camp de Túria, Horta Nord and Alt Palància comarcas of the Valencian Community, between the provinces of Castelló and Valencia Spain. This moderately high range is an eastern prolongation of the Sierra de Javalambre.
Source-backed
