Leard State Conservation Area occupies an outlying arm of the Nandewar Range and contains a variety of woodland communities. It forms part of a corridor of vegetation linking Mount Kaputar National Park to the north with the Pilliga forest reserves to the south. The corridor provides refuge for many species at the western edge of their range and for ecosystems which have been heavily cleared elsewhere.
Leard State Conservation Area contains two endangered ecological communities and provides habitat for numerous woodland bird and microbat species.
