Maps. New Mexico. Geologic map and stratigraphic sections of Paleozoic rocks of Joyita Hills, Los Pifios Mountains, and northern Chupadera Mesa, Valencia, Torrance, and Socorro Counties, N. Mex., geology by R. H. Wilpolt, A. J. MacAlpin, R. L. Bate, and Georges Vorbe; oil and gas investigations, preliminary map 61 [with text]. Scale 1 m.=l in. n. p.