Bouguer gravity map of Nevada, Winnemucca sheet, by John W. Erwin, 1974.

Gravity map of the Winnemucca 1- by 2-degree Quadrangle at 5-milligal intervals, showing gravity stations, and generalized geology in ten units; on topographic base with township and range; text describes geologic units, sources of gravity data, and sources of generalized geology; accompanying 4-page text describes the field methods and data reduction, general geology, and gravity anomalies; references.

Map 47, 1:250,000, 22x36", two color, $4.00