Weston 1946 Journal July 7 - Sand Dunes, Pinto Basin, elev. 1775 ft., 1/4 mi W + 2 3/4 mi S of Pinto Peak, Joshua Tree Natl Mon, Riverside Co., Calif. We got up at 4:30 a.m. a few minutes before the sun's first rays hit the dunes. The first thing we did was run our traps lines. Out of 30 traps Wade caught one Dipodomys merriami. Out of 25 traps I set, I caught one Dipodomys deserti. This is the first big Dipo I have seen on this trip. The dunes we are working on here are made up of loose white sand crossed at irregular with scattered clumps of galleta grass (Hilaria) and Creosote bush (Larrea), the former the more numerous. The dune rises about 60+ ft up from the surrounding basin floor, is about 3/4 of a mile long, running E-W. The prevailing winds here seem to be westerly as shown by the blowing of the sand in a E direction. In fact the entire dune assumes this drift as does each little hummock at the base of each bush and clump of grass on it. It also was noticeable that there was more animal life at the E end, both reptilian and mammalian. The clumps of vegetation