WB Davis 1935. Salmon Creek, 8 mi. W Rogerson, Twin Falls Co., Idaho. May 13. about 200 yards south of the dam. The dominant plant is Artemisia tridentata which reaches as far as the eye can see. No trees, save for a single juniper. Below the dam, in a deep, precipitous- walled canyon, there appears to be a growth of willow bordering the slight stream that trickles there. Yesterday we encountered snow after we crossed the Idaho line, and noted that the higher peaks were all coated with white. There had been a slight snowfall here but when we arrived it had disappeared. However it was quite cold and the strong west wind made it quite uncomfortable. We heard four ravels calling from at least three different posts. I attempted to track one of them down but with no success. The topography here is that common to southern Idaho, consisting of lava-capped buttes, sharply cut off on one side; the other gently rising from the surrounding terrain. The reservoir