The park received the green listing ting due to its diverse range of threatened species and communities, such as the Grey Grass Tree, Temperate Woodland Bird Community, and Carpet Python.
The park is 14,655ha and is characterised by three distinct vegetation communities - the granitic hills and woodlands of the Warby Range, the Box - Ironbard of the Killawara forest and River Red Gum Forest and wetlands of the unregulated Ovens Heritage River.
Located between the Victorian Alps and the Murray Valley, Warby?Ovens National Park includes some of the State's most significant bushland. Along the heritage-listed lower reaches of the Ovens River there are majestic River Red Gum forests. Because the river is unregulated by dams, it supports one of the most intact floodplain forests in northern Victoria. The Killawarra section has a very distinctive box-ironbark forest. It contains some patches of large old trees and is the most important part of the park for threatened birds such as the Swift Parrot, Hooded Robin and Speckled Warbler. The Warby Range contains a mix of grassy and healthy woodlands punctuated by granite outcrops. This area of the park offers wildflower displays in spring and several spectacular lookouts.