The Mungana Rock Art Site at The Archways is one of two Aboriginal rock art sites in the Chillagoe area that is publicly accessible. Visible from some distance away, the rock art is in a shallow but protected shelter, surrounded by high karst cliffs.
A large panel contain a number of motifs, mostly painted in in red and white.
The motifs include what appear to be snakes, as well as many vertical and horizontal lines.
A very small number of motifs are painted in charcoal, in a style that is similar to cave art found on the east coast of NSW.
Indirect dating methods and radiocarbon analysis applied to the rock paintings suggest that most Chillagoe rock paintings are relatively young – less than 3500 years old.