Greene, H. 1982 12 May (continued) west to the first ridge, then N to the road and beyond on a 2-track road for ≈100 m. Then W to next ridge, S. to main road, E to the 1st ridge by the road, and S. for several 100 m on the poor dirt road just W. of the ridge. Saw 12 Gopherus, from 100 mm carapace to large adults, several eating. Also Uta, Cnemidophorus, and 1 Gambelia (escaped in hole). At 1030 h saw an adult Crotalus scutulatus crawling slowly across the road ≈20 m ahead of me - coiled, rattled, then tried to crawl off as I approached. Struggled when pinned, and had palpable food in stomach. From 1100-1300 drove S. on the dirt road then back to parking area and W. to Naviha. Saw numerous Cnemidophorus and Callisaurus, 6 Gambelia (caught 4), and 5 Phrynosoma. Two of the Phrynosoma were found at the roadside at 1250 h, ♂ riding on the ♀ - even ran for several m like that. His penes were not out when captured, so he was evidently feeding rather than copulating. Lunch & gas in Mojave. Drove to Darwin Falls and hunted rocky slopes from 1700-1830 - saw nothing. Road hunted starting at 2000 h - went to Vista lookout on 190, back to Panamint Valley Rd, then W to Olancho for dinner, and back to Darwin Falls Canyon to sleep.