Media Luna and its surroundings were frequented by groups of the Rio Verde Culture, settled in the region between 250 and 1100 AD. The analysis of materials located inside the spring demonstrates it was used as a ritual space. The current Media Luna Archaeological Project, directed by Pamela Lara Tufiño, has studied the geological formation of the spring to learn about its changes over time. Areas on land and water have been surveyed, finding ceramic figurines and vessel remains. Likewise, an underwater excavation was carried out that resulted in the discovery of the skull of a female individual and of a skeleton belonging to a sub-adult woman, found on one of the walls. Finally, more than 400 figurines stored in private collections and state museums have been recorded.