Moles de Xert[1] (Valencian pronunciation: [ˈmɔlez ðe ˈtʃɛɾt], Spanish: Muelas de Chert) is a 4.2 km (3 mi) long mountain range in the Baix Maestrat comarca, Valencian Country, Spain.

These mountains have very original shapes, topped by regular rocky outcrops resembling castles or fortifications.

The main mountain, Mola Gran, has been disfigured on the southern side by a stone quarry that left a very visible scarred surface with a large rock slide.

There are remains of an ancient Iberian Ilercavones settlement in the Mola Murada.

Wildlife, like Spanish Ibex, Roe Deer and Wild Boar, is abundant in these lonely mountains.