Please see Osmond Range. The WA Government calls it Osmand Range and most other publications (World Heritage, Atlas) call it Osmond Range!
Would you like to enter your own description & more? It's free, click HERE.
The Osmand range lookout is a short walk from the Echidna Chasm Car park at the northern end of Purnululu National Park (I am unclear about the spelling of this range - some literature has 'Osmond' and Department of Parks and Wildlife has 'Osmand' - you can type either spelling into google). . The lookout gives you a wonderful view over this ancient mountain range. The rocks in this range have been dated between 1880 and 1845 million years old.
The Osmand Range is very different to the Dome like structure in the Bungle Bungle Range at the other end of the National Park. This is well worth a look and the informative signs along the track tell you about the importance of the Osmand Range and valley to the history of the area. They are spectacular in the early morning or later afternoon light.