The Sorigué group gravel works is an open-air quarry on a former terrace of the River Segre, located around 50 metres above the current river level. As the centuries went by, the river’s natural meandering process has left terrain formed by layers of different sediments.
The visitors’ centre, jointly set up by the Sorigué group working with the University of Barcelona, demonstrates the origin of this sand and gravel, its formation, its chronology and its characteristics, and also mentions its current applications. Furthermore, it explains the final process of separation and classification of heavy metals extracted along with the sand and gravel: magnetite, zircon or pyrite, among other minerals that share their origin with the gravel, which is subsequently transformed into concrete.
