[citation needed] According to a Land Conservation Council Rivers & Streams Special Investigation completed in 1990, "It is an important example of the large-scale biological systems that were once widespread in south-eastern Australia.

[2] The national park surrounds the spectacular Mitchell River where it has cut its way through rock strata creating high cliffs and several gorges.

It can survive here as the steep walls of the gorges protect it from the annual drying summer winds and the bushfires that occasionally rage through the area.

Vegetation in the park includes papery-barked kanooka trees, lilly-pillys, muttonwoods, ferns, mosses, vines, and lianas.

According to Gunai tribal legends, the Nargun is a fierce half-human half-stone creature that lived in the den, a cave under a rock overhang behind a small waterfall.