G. A Nowlan

• Analytical results for 2244 stream-sediment samples, east half of the Lewiston 1p0s
• Analytical results, sample locations, and other information for stream-sediment, soil, heavy-mineral-concentrate, and rock samples used in mineral resource studies of Coronado National Forest and adjacent areas, southeastern Arizona and southwestern New M
• Significance of gold and silver in drainage samples from the vicinity of the Baboquivari Peak Wilderness Study Area, Pima County, Arizona