Cova de l'ú

Starting from the coll del Boix towards the turó del Mal Pas de Puigdoure, we will leave the turn-off to the Hospital de Sang on our left. Further on we will also leave the spur that leads to the agulles de Matarrodona and to the cova Bonica de l'Illa. We will take the next spur (spur 800, on the CET map, it coincides with the figure 800 of the contour line) branching off to our left and following the crest line. We will reach a cliff from where, right below, we will see the Agulla Petita de Matarrodona. We will descend on our right, finding a worn gully in the forest. On the left hydrographic side of this gully, divided into two parts by a small promontory, is the avenc de l'Ú, at approximately the 767-metre contour line. We will find the entrance at the first division as we come, just after descending a few metres and sheltered in a conglomerate block. If we finish descending this gully and glide over the rocky ground seen on our right, we will find that, going to meet the base of the Carboniferous level, we will have to cross a small gully and then, at the next bend, it is already that of the cova de l'U, with the foot of the entrance filled with tangled arítjols. Approximate coordinates.