Detail of the Tiro Callejo pass (2.621 m) between the west and the east side of the mountain. This is the easiest way to traverse from one to the other side of the mountain, and it requieres a IV grade short passage, a III grade pass and mostly II and I grade with very much loose stone. The access to the Tiro Callejo itself from the west requires a miserable walk up over a loose debry slope (seen at the lower part of the image).