Tinted relief map of the Glenbrook 7.5' Quadrangle, by Susan L. Nichols, 1975.

Map of the Glenbrook 7.5' Quadrangle showing elevation in 12 bands of color; topographic contours serve as boundaries for color bands; color changes with elevation.

Map 2Ba, 29x21", 1:24,000-scale full-color map, $2.00