Avon Valley National Park

The sides of the Avon Valley slope steeply from the undulating plateau, which is about 200m above the river level. The area is undulating, with soil types including lateritic sands, loams and gravels. The river valley forms the division between the drier northern forest dominated by wandoo and the southern forest dominated by jarrah. The area is partly within the Red Swamp Brook and Brockman River catchments.

Vegetation: The vegetation consists primarily of open-forest. Jarrah and Marri on the uplands and open-woodland of wandoo in the valleys and on the slopes. The occurrence of Wandoo in the major valleys is significant since it is normally restricted to the low rainfall areas in the east and north of the Darling Range.

Flora: contains the fringed lily, Thysanotus Anceps, a rare species found only in a few localities in the darling range north-east of Perth; Conostylis and hybrid Eucalyptus spp.