Mayhew 1959 Mar. 28 Journal 33. Deep Canyon region, Riverside Co., Calif. in our car to a mine near Nighting- ale on the Palms to Pines Highway. We left the car at 0830 and started hiking along the Cactus Spring Trail. After we crossed Horsethief Creek a second time, we left the trail and turned north-east toward our station. The topographic map showed relatively flat country in the area west of Sheep Mt., but we found it dissected by numerous ravines that we had to cross. Therefore, our progress was slower than we had anticipated. We found some very nice pinion- juniper habitat on both sides of the northern boundary of that portion of San Bernardino National Forest. This area also was relatively flat. How- ever, as we proceeded north, the land became increasingly cut by ravines. We stayed east of Deep Canyon and west of Sheep Mt. After we left the pinion-juniper belt, we found considerable evidence of bighorn sheep activity (eaten Yucca mojavensis stalks, bedding areas, and numerous droppings). I saw much more evidence of sheep activity here than I had in Cat Canyon or in the Carrizo drainage except for one restricted locality. When Rudy