Slope map of the Griffith Canyon 7.5' Quadrangle, by USGS, 1975.

Map of the northwest one-quarter of the Spanish Springs Valley 15' Quadrangle (since published by the USGS as Griffith Canyon 7.5' Quadrangle) showing the steepness, or slope, of the land surface as color areas that represent five ranges of percent of slope.

Map 4Eb, 29x21", 1:24,000-scale full-color map, $2.00