Description
The cliffs rise like steps from the lowland area to the high plateaus. The north end is at 363130N1134700W. The south endis at 352300N1134200W. plateaus. The north end is at 363130N1134700W. The south endis at 352300N1134200W.
History
Named for the Grand Wash Trough which was formed by the "faulting and tilting of a large crust block" (US-T121) "faulting and tilting of a large crust block" (US-T121)