
It is just a short ride by bus (less than 3 hours) from Potosì to Sucre and it is the time to leave the dusty gravel tracks behind us, as, for the remaining part of the trip, the roads will be always asphalted.
The trip starts from the suburbs of Potosì, then the road climbs on a hill from where there is a nice view of the city.
A few kilometres from the city's center, there is a site where materials for making the concrete are extracted. Incidentally, while working in the mine, a strange pattern was discovered on a huge rock composing an hill: further investigations have concluded that they are footprints from dinosaurs, so the affected part of the site was put under protection and no longer excavated.
The footprints are well preserved and very clear. They are vertical because hundreds of millions of years ago, the place was situated at sea level and was flat / horizontal. Because of the action of the Nasca tectonic plate, the continent received a tremendous push from the west to the east, which caused the Andes to raise and the footprints to go vertically at an altitude of 2800 metres above sea level.
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