 Adjacent west of the West Tintics, lie two additional bordering mountain ranges, the southwest flank of the Sheeprock Mountains and the small, circular Simpson Mountains west.In the west and southwest, west of the House Range, is the Ferguson Desert; the Confusion Range and Tule Valley lie between the House Range and the Ferguson Desert.The following is a list of communities or landforms associated with the north, south, east and west desert perimeters (approximate to mountain foothills, valleys, etc.