Diebil Hills is an 18 km detour westwards off the main track. The track runs parallel to the dunes for 12 km and then, what a sight! From the usual vista of spinifex covered sandhills, a range of rocky hills just emerge from the sand. Like the ramparts of some long buried city, the sands just fall away from these rocky abutments that just swell into jagged saw tooth ranges. You have no warning of their arrival until you drive through two dunes that are like a low wide gateway and there in front of you is the range. The ranges continue to grow in size until they are more spectacular than the
Durba Hills. Their base comprises steep scree slopes of jagged
rock dotted with huge boulders that have fallen from the cliffs above. In many
places the bottom most sections of
rock have slipped away leaving
rock layers above hanging unsupported and forming a huge
cavern.
At the end of the track lies the Diebil spring although the site is actually a long
gorge that cuts its way into the range. As it narrows, the floor is strewn with the huge boulders that have fallen from on high. There is no "spring".