Field and laboratory investigations of the Pigeon Canyon, Nevershine Mesa, and Snap Point WSA's (Wilderness Study Areas) in Mohave County, Ariz., were conducted to determine the mineral resource potential of these lands. The investigations indicate that both the Savanic Mine collapse structure (which occupies pgrts of the Pigeon Canyon WSA and an area excluded from wilderness consideration) and the Cunningham Mine collapse structure (which occupies parts of the Nevershine Mesa WSA and an area excluded from wilderness consideration) have high potential for resources of uranium, copper, and other metals . In addition, a small area witHn the Nevershine Mesa WSA that lies between the Savanic Mine and the Cunningham Mine collapse structures has moderate potential for resources of uranium, copper, and other metals because of its proximity to th<3 two mineralized collapse structures and because joints between the two collapse structures can be hosts for uranium, copper, and other metal deposits.Most collapse structures of the Grand Canyon region are not mineralized, but several collapse structures have yielded substantial quantities of uranium, copper, and other metals. For this reason four previously unknown collapse structures in the Pigeon Canyon WSA have moderate potential for resources of uranium, copper, and other metals.The remainder of the Pigeon Canyon and the Nevershine Mesa WSA's has low potential for resources of uranium, copper, and other metals. The Snap Point WSA has no known mineralized zones or collapse structures that can be hosts for uranium, copper, and other metal deposits and therefore has low potential for resources of these commodities.The potential for resources of oil and gas is low in exposed Paleozoic rocks east of the Grand Wash fault in all three WSA's. In those parts of the Pigeon Canyon and Nevershine Mesa WSA's west of the Grand Wash fault, the potential for resources of oil and gas is moderate in buried Paleozoic rocks. Gypsum occurrences west of the Grand Wash Cliffs in the Pigeon Canyon and Nevershine Mesa WSA's have a moderate resource potential for gypsum; however, this commodity is readily available and more accessible elsewhere in southern Utah and northern Arizona. Slightly anomalous amounts of syngenetic uranium and molybdenum occur in the c^psum deposits but represent a low resource potential at best for these elements. There are no gypsum deposits in the Snap Point WSA. No coal-bearing rocks were observed to cropout in the three WSA's and none are expected to be found in the subsurface of the three WSA's.Industrial mineral resources (building stone, sand and gravel, and limestone) are present in all three WSA's. However, these commodities are more accessible and readily available elsewhere in northern Arizona and southern Utah.In this report, the term "other metals" refers to associated metals such as lead, zinc, silver, arsenic, nickel, molybdenum, cobalt, chromium, and antimony.