In the '50s start the declive of his popularity.

It is separated from the declive by the primary fissure and is related with the anterior quadrangular lobule of the hemisphere.

"That's the superior and inferior lobes, the declive, the folium, and the tuber - the major portion of the cerebellum."

In 2009 Peruvian crust punk band Reciklaje cover "The Nightmare Continues" for their album El Declive de las Estructuras.

The Declive Austral (southern slope) de la Sierra is an arid area as the winds from the Gulf of Mexico that brings in moisture do not get this far as often.