The text and geologic maps that compose Bulletin 198 represent a major advance in our understanding of the geology and mineral resources of west-central Arizona. The Buckskin and Rawhide Mountains, along with the adjacent Harcuvar and Harquahala Mountains, are one of the approximately 25 metamorphic core complexes in western North America. The geology of the Buckskin and Rawhide Mountains is dominated by the BuckskinRawhide detachment fault, a subhorizontal, undulating normal fault. Detachment faults are characteristic features of metamorphic core complexes. Improved understanding of detachment faults is critical in formulating more accurate models of the genesis of mineral deposits in Arizona. 279 p.