Tags: Mountain Range.
The Tinajas Altas Mountains (O’odham: Uʼuva:k or Uʼuv Oopad) are an extremely arid northwest-southeast trending mountain range in southern Yuma County Arizona approximately 35 mi southeast of Yuma Arizona. The southern end of the range extends approximately one mile into the northwestern Mexican state of Sonora on the northern perimeter of the Gran Desierto de Altar. The range is about 22 mi in length and about 4 mi wide at its widest point.