The Maya performed important rituals in many caves and left behind large numbers of artifacts, but there are very few caves that contain murals or hieroglyphic writing on their walls. The Cueva de Jolja' located in the Chiapas highlands has both a wall mural and several inscriptions dating from the Early Classic Period (A.D. 300 - A.D. 600). This cave is still used by the local Ch'ol Maya of the nearby community of Joloniel for their Day of the Cross ceremonies, and attendance at this annual event exceeds 500 people.