Parco Naturale Regionale del Beigua

From the higher parts of the picnic area of Curlo (Arenzano) you can see the various morphological aspects of the surrounding mountains. The sharp drop of the Tyrrhenian slop is due to tectonic movements occurred in the past (Plio-Quaternary, approximately 2 million years ago). Tension phenomena (horizontal arrows) generated faults (with the red line representing the fault line) along which the southern blocks dropped.