sentences:  The range mostly made up of sandstone and clay rocks, but include also limestone landscapes, like the Rocche del Crasto where is located the Grotta del Lauro abundant of stalactites and stalagmites .Towns that are situated in the mountains include Troina, Nicosia, Mistretta, and a number of other towns in the province of Messina.Much of the mountains are covered by thick forests of cork trees on the lowest slopes giving way to oak and then beech at the higher elevations.