Arnold, Steve 1963 JOURNAL April 12 4 miles w. of Jubilee Pass, Death Valley nat'l Mon. Inyo Co., California - adult & Crotaphytus collaris photographed - 12:20PM Drove north through Death Valley and out through Townes' Pass. Drove road from 23 to 36 miles north of Trons in the Panamint Valley from dusk to 8:30PM - no specimens seen. Slept on the alluvial plain below Surprise Canyon, Panamint Mtns., Inyo County, California April 13 Surprise Canyon, Panamint Mtns., Inyo Co., California - hiked up the alluvial plain to Surprise Canyon and up-canyon to the Blue Boy Mining Co. buildings. Uta stansburiana, Chemidophorus and Hyla regilla found within the canyon. Sauromalus and Callisaurus sighted at the canyon mouth 11:30 AM. 6-7 mi. E. of Panamint Springs, Inyo Mtns, Inyo Co., California - 2 & Crotaphytus collaris sighted from car and photographed (one specimen only) 8mi.E of Panamint Springs, Inyo Mtns., Inyo Co., California - Sauromalus sighted