Mayhew 1959 June 19 Coachella Valley, Riverside Co., Calif. or leveled, then we started into Deep Canyon. We entered the canyon about 1000. At 1135 we saw 2 ewe bighorn on one ledge and 2 ewes with 1 lamb on another ledge a couple of hundred feet above the floor of the canyon. They were above the first water we found in the canyon (just upstream from the 2 old dead cottonwoods). The first water is between 3/4 and 1 mile from the mouth of the canyon. The first pool was about 10 ft.x 6ft. and about 1 foot deep. The temp. of the water slightly below the surface was 27.0°C. (in the sun), whereas the temp. near the bottom of the same pool was 26.6°C, at a pool further upstream we counted 29 adult Hyla arnicolor congregated on a shady rock at the edge of a pool. These animals were all located in an area about 2 feet square. Another ewe was seen at 1205 further upstream. We either saw her again a few minutes later on the other side of the canyon, or it was a different ewe. At any rate, we only counted 1 at this location. Nearly all the pools have water in them for a distance of about 200 yards from the location of the first water. Some of these pools (at least 2) had water at least 4 feet deep. A very small amount of. Journal 66.