Darke's range hosts a spectacular 4WD track that will lead you straight past this cache. Alternatively you are looking at a long hike.
The Darke range is made up of felsic volcanic rocks, quartzite, pelite and carbonate rocks deposited at c. 1865 Ma.
This 4WD track is unofficially one-way and is entered from Dog Fence Rd. You have to drive through the paddock up to Federation hill & you can lift the bollard out of position to continue along the 4WD track. Please leave all gates & bollards as you found them.