In the enchanting locality of PiandelleAlpi it is possible to observe a sòstra, a rural structure constructed to provide shelter for livestock, that is in a good state of preservation. This is a long large edifice that is generally open on one side (on one of the two long sides), created with dry stone masonry walls and a large traditional piöde(stone slab)pitched roof. Often isolated in the pastures, the sòstra, which is not very high, mainly gathers small livestock. Other examples in Valle Intelvi are present on Mount Generoso, the Alpe Grande and the AlpeSquadrina. The latter, which is massive and monumental, serves as shelter especially for cattle and is characterized by the presence of arches that make the structure especially interesting and unique.