It is an important Aboriginal site for the Yuin people and a prominent landmark that can be seen from across the Bega Valley, also known as Biamanga.

The mountain is the remnants an ancient shield volcano, and granite rock formations and boulders are visible along the course of Mumbulla Creek.

[4] After concerns had been raised by local people, the NSW Government set up an advisory committee in 1977 to investigate the woodchipping industry[4] and in the same year 1977 Guboo Ted Thomas, a Yuin elder, led a protest against the destruction of the forest on Mumbulla Mountain.

[7] Biamanga has been jointly managed by the traditional owners and the National Parks and Wildlife Service NSW since 2006.

[11] King Jack would spend time communing with the ancestor spirits on the highest peak of the mountain and send smoke signals for his people to see.

[3] Independent evidence of the sacredness of the site was provided in 1964 by linguist Luise Hercus and by musician and linguist Janet Mathews, but only made publicly available in the late 1970s; as well as by notes made much earlier by Alfred William Howitt, an ethnologist who attended a Yuin initiation ceremony in 1883.