Mayhew 1958 Journal 90. June 12 Colorado Desert, Calif. dunes and saw the tracks of numerous other animals. None were the only animals seen, however. We left the dunes at 10:30 AM (PDT) (temp of air - 84°F.) and headed west again. We stopped 11 miles west of the Sand Hills to look for reptiles. The creosote bushes were like young trees in the area. The vegetation looked so verdant, we thought the area must be crawling with reptiles. However, we saw nothing but tracks for the first 45 minutes or so. We were on our way back to the car when Fritz spotted a Dipsosaurus dorsalis. We spent another hour searching after that. During this time, 5 Dipsosaurus were captured and 2 more seen. One Callisaurus draconoides was also seen. None of the animals were over 50 yards from the highway, even though we walked a considerable distance from the road. Then we drove to El Centro for "brunch" and some rest. After an hour or so in the park in El Centro, we drove up Highway 99 to Highway 78, where we turned left & proceeded to Buns Bend. After a side trip to look at Split Mountain, which is rather spectacular,