Preliminary map of limonitic hydrothermal alteration for portions of the Needles 1o x 2o quadrangle, Arizona and California
Raines, G.L., 1983, Preliminary map of limonitic hydrothermal alteration for portions of the Needles 1o x 2o quadrangle, Arizona and California: U.S. Geological Survey Open-File Report 83-0421, 7 p., 1 sheet, scale 1:250,000.