Chute, Blair 1974 Journal 6 mi. W. Navajo Bridge, Coconino Co., Arizona where blackbrush actually comes down to the road. Atriplex confertifolia was not mixed with blackbrush but smaller species of Atriplex was. The soil, still red, was sandier here, and some K-rat size burrow openings could be seen on the bases of hummocks surrounded by Ephedra. We decided to try here tonight, near the mileage marker No. 551. We returned to check out the east side (ES) of the Colorado river, but found only very gravelly soil, with some saltbush present, but no rodent burrows apparent. I am skeptical about finding D. microps beyond its rather limited marginal records in this area, and suspect that the markings we saw 13 mi. W. Navajo Bridge are those of D. ordinus, which is also present here. We returned to camp at 10:00 and shortly the wind, which had been quite mild, picked up and we had to put away light objects, lest they be blown away. I placed the Trapex in Truex boxes around the animals as a windbreak, and put cheese cloth over them, attempting to keep it wet. The temperature was 78° F, but the humidity was 97%, quite