Mineral surveys of the Pecos Wilderness, New Mexico identified probable mineral-resource potential within an area of about 3 sq mi at its southern boundary, in and near an area underlain by Precambrian metamorphosed volcanic and related sedimentary rocks. THe mineral deposits, if they exist, probably are of the zinc-lead-copper stratabound massive sulfied type, possibly with by-product silver and gold, of the type mined previously just outside the wilderness. No fossil fuel resources were identified in this study.