Roca dels Bous (Catalan: "Bull's Rock") is an archaeological site located in Sant Llorenç de Montgai, in the Catalan Pyrenees, Spain. Since 1988 the Autonomous University of Barcelona and the UCL Institute of Archaeology study and record the fossil sequence of southern European Neanderthals who inhabited the area during the Middle Paleolithic approximately 50,000 years ago. The excavation team utilizes a worldwide unique digital system and various innovative technologies that significantly improve the quality of the classification of the recovered objects. Roca dels Bous has as one of the first Paleolithic excavation sites in Spain established a visitor centre, that focuses on displaying the Prehistory research of the prepyrenees area.