Skotnicki, S.J., and Ferguson, C.A., 1996, Bedrock geologic map of the Apache Junction and Buckhorn quadrangles, Maricopa and Pinal Counties, Arizona: Arizona Geological Survey Open-File Report 96-08, 17 p., 1 sheet, scale 1:24,000. Location: Lower Salt River area, Gilbert area, Goldfield Mts., Superstition Mts.,