1. Transcontinental geophysical survey (35° - 39° N) seismic refraction profiles of the crust and upper mantle from 112° W longitude to the coast of California / [cartographic material] Yale Public content 1968. 2012-10-09T19:26:01Z. 2013-03-18T22:22:39Z. Warren, David H. Dept. of the Interior, U.S. Geological Survey. English. Public. California, Arizona, Utah, Nevada, Southwest, New, and Southwest, New.