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Marocche and dinosaurs
A massive chaotic mass of rocks with blocks of gigantic dimensions dating back to Ice Age
Marocche di Dro are the widest and most significant in Europe. The footsteps left by dinosaurs were discovered on some of scattered rocks.
The Marocche di Dro (lake Garda, Italy)is a massive mass of rocks with blocks of gigantic dimensions chaotically distributed more than 100,000 or 200,000 years ago. It has a glacial origin: when a glacier moved along a valley like a great solid river, it also changed its shape by applying enormous pressure against its side and bottom. The sides of the valley, in particular, were affected by force and pressure, which was lost when the glacier retreated. So then the smashed blocks of rock and inclined layer laid bare by the glaciers were no longer supported by the mass of ice, and thus came off collapsing on the valley floor.
For a nice walk you can follow the biotope track created by the Province of Trento: the beginning of the trail is situated along the road that connects with Dro to Drena, next to a hydroelectric reservoir. The trail is a loop that winds through the biotope territory and takes at the end of the visit to the main entrance. The entire route can be completed in about two and a half hours - three hours, with a slow pace and taking into account the brief stops for observing, taking photos, writing and resting.
Dinosaur footprints were discovered on some stones in 2000. It involves footprints left behind 190 million years ago from different dinosaurs, at least one footprint is from a big herbivore, about 6-7 meters tall, while the other is from a carnivore. A guided trail along the beautiful geological biotope, kept by the Tridentine Museum of Natural Sciences, takes you to the dinosaur’s footprints.
The landslide of Marocche has brought to light other footprints on Mount Angione: discovered in April 2007, they represent a continuous succession (up to 50 meters) of dinosaur footprints at three or more fingers, large and small, left behind about 190 million years ago. This is an exceptional discovery, which could explain the evolution of large reptiles.