Jitu System

To the south of the Vega de Ario is an important depression called the Jou la Cistra, furrowed by deep lapiaces and other minor depressions, dolines and jous. In its subsoil is the Jitu system and the Jultayu well, a complex underground system, with a development of about 8 kilometres whose initial opening is followed by a succession of narrow wells that reach a first flow of water, which is submerged in a secondary siphon.

The Jitu System is also of biological interest, as a new genus and species of diplopod, Asturasoma Fowleri, has been discovered here.