- The wall paintings were discovered by Lt R.L. Rawlings of the 2nd Battalion, 6th QEO Gurkha Rifles high on an abrupt limestone cliff at Gunong Panjang in 1959.
- Some of the paintings, depicting animals such as deer, turtle, wild boar and tapir, are easily identified. There is also a drawing that looks like a dugong but some claim that it could be a giant catfish.
- An initial survey of the site in 1959 also unearthed re-stained stone tolls attributed to the Hoabinhian period.