D. Strong 1925 (Copy) V. G. Swallows and W. T. Swifts are common here (one Sparrow hawk seen about 7000'). We camped about 6:30 on a clear stream of water -- about 8" deep and 3' across flowing thru thickets of mesquite and willow brush between high cañon walls -- the bottom of the cañons are full of half or wholly wild stock. These desert "foothills", or more properly ranges of the San Pedro Martir bordering the San Felipe Valley are shere rock piles -- huge distorted granite boulders, the cañons showing the effect of freshets -- and at the mouth of all the cañons are vast alluvial fans of washed out boulders. The desert appears flat but really forms a trough between the San Pedro Martirs on this (west) side and the San Felipe range on the other -- perhaps 18 miles in width, and supporting a vast and weird desert growth of mesquite cactus (innumerable species) cats claw and other venomous shrubs. Ash-throated flycatchers, noisily mating are very conspicuous. Our camp must be about 600' higher than the desert at the canyon mouth. On the way down we saw -- much to the alarm of our stock, a dead colt killed by a Mt. Lion, in the trail. On the latter acct. this wild stock of the desert border especially the horses do not increase. The afternoon in the high-walled canyon was rather hot and oppressive. The evening cool and delightful, the sheer canyon walls gleaming white in the moonlight looked like snow in the Canadian rockies.