Palmer 1934 Itinerary 1158 Columbia Ave, Ontario, San Bernardino Co Calif. Dec 26 Two boys, one of them my cousin A. R. Mahurin, (cont'd) brought in a ? Thomomys. Left home (Ontario) at 4:30 P.M with G. L. Palmes and E. H. Bailey and drove 5 8 mi. and then in general SE direction to Norco. From Norco drove about 2 mi. SE into the hills to a point: 2 mi. SE Norco, approx. 700 ft, Riverside Co., Calif. There camped in a grassy canyon by a dry stream-bed. The hills on either side were low rounded with occasional outcrops of large rounded granite boulders. On the hillsides were rather thick growths of low shrubs: Artemisia, Eriogonum and . The ground beneath was commonly covered with grass and Erodium but in many places was bare ground. In the flat near camp were a few willows, Cottonwoods and scattered plants of Nicotianum tobacco. Set 90 traps (gor-size mouse) after dark by using flashlight. The line was run in a big loop up one side of the canyon then crossing over and up the other side of the canyon. About 1/4 of the traps were set in the rock outcrops and the rest in the low chaparral.