Aeromagnetic map of Nevada, Tonopah sheet, by Donald Plouff, 1990.

A 1:250,000-scale map of the Tonopah 1x2-degree Quadrangle showing total intensity of the Earth's magnetic field at intervals of 50 and 100 nanoteslas.

Prepared in cooperation with the USGS. Map is printed on translucent paper to allow user to overlay on same scale geology which is available in B58, B78, and B99A.

Map 96, one 22x39" two-color plate, $4.00