Geologic Interpretations and Sample Locations from geologist(s): Crawford E. Fritts, Garnet H. Pessel, Gilbert R. Eakins, Hillard N. Reiser, Irvin L. Tailleur, Marvin D. Mangus, Philip S. Smith, R. E. Garland, William P. Brosge, William Wallace Patton, Jr. in the following quadrangles or areas: Survey Pass Survey Pass