Like La Roca, the Areny Mountain is a very beautiful place. We have to point out the red rocks from the Trias, from nearly 250 million years ago and the spectacular views on the Baix Camp. This place, which was peopled in the prehistory, has been explored by different archeologists. Salvador Vilaseca carried out different archaeological campaigns where he found flint stone gadgets and pieces and ceramic fragments from former ages. In the 40s of the last century huge amounts of red stone sand were removed – as a result of the erosion of the rock for centuries – this sand was used for the glass production.