Emckson 1934 W. Base of Castle Dome Wilton Tunajus Altas single Rock Kren; flock of Desert Mjarrowss - 5t. Desert two Q nail and one Jay Shoebe; last 3 species all near buildings of mines. Set out 12 traps, middle size 12 on rocky hill of low elevation, 50 ft. rest on steeper parts along wash. Jan. 11, took two Peromyscus from traps on hill; two others sprung; from those on flat took one Dipodomys and one Wood Rat, both of latter X in traps under Goatnut bushes, two others sprung. In afternoon moved to Wilton, Arizona, let out 50 medium sized traps at N E. edge of town. Spent from 5:00 - 6:00 observing birds on N edge of Town. Species noted; Cactus Kren; Jay Shoebe; Brown Towhee, Gambel Sparrow. Jan. 12, Ran traps, one Dipodomys, only specimen taken; two other traps sprung. Traps were set from sandy flat up on to rolling gravel beds; vegetation creoste and usual plants with it. Moved to Tinajas Altas, 1150 ft., Yuma Co., Ariz. Made camp in canyon at base of series of tanks, ground coarse, light colored granite sand and fine some fine soil; plants creosote, and others. Cacelia farinosa catelaw, ironwood and some mesquite, neat water hole: mountain rise steeply to an elevation of a little over 2000 ft., solid rock much weathered steep and cracked; at less steep with shallow draws strewn with rock debris; some plant growth up these points, draws; yucca sp?, Bee sage, Helisporone