It is located above the “Coll d’Espina” pass, settled on a hill that divides the Isábena and Baliera riverbeds. Opposite the access to Neril and next to the N-260 road.
It is a notable element in Laspaúles, marking the old boundary of the dioceses of Lleida, Barbastro, and La Seu d'Urgell.
Tradition says that the bishops used to meet at this point to resolve matters within their jurisdictions. The stone, with three inscribed crosses, represents the ancient bishoprics. Although the dioceses have changed, the area now belongs to Barbastro - Monzón.
Moreover, Coll de Espina offers outstanding panoramic views of the Sierra de Chía, Posets, Maladetas, and the Eastern Pyrenees. A viewpoint with special design and information has been built on the national road.
The description details a monolithic block with three incised crosses, initially horizontal, and a small pillar dedicated to Saint Sebastian. The history suggests a possible date of 1571 related to the establishment of the Barbastro diocese by Philip II.