FIGURE 2.1.-Shaded-relief map of California and western Nevada, Range province, are myriad block-faulted mountains separated by showing the San Andreas fault as a series of linear valleys and ridges intervening basins. Synthesized from digital terrain models of a passing through a mountainous region, the Coast Ranges, the trends 1:250,000-scale map series originally prepared by the U.S. Defense of which are a low angle to the fault. To the east, between the massive Mapping Agency, now maintained by the U.S. Geological Survey; Sierra Nevada and the Coast Ranges, lie the broad, flat valleys of the compiler, Ray Batson, U.S. Geological Survey. Illumination is from Sacramento and San Joaquin Rivers. Farther east, in the Basin and north at elevation of 30°.