(April 1 cont.) Crawled over the crest & we could no longer see them. In places the road follows the E. edge of the ruts & the dried mud flats come right up to the base of the ruts. In places there are small patches of desert along the edge of the ruts & extending up into small draws. Between 2 portions of the San Pinto the road goes west on a relatively flat area. There is a small settlement here called La Ventana. About 3 mi. N of here & also at La Ventana there are fairly good patches of desert at base of ruts. 1.8 mi. S La Ventana, vegetation ends again & the rd. climbs into the second portion of the Sa Pinto. The San Pinto are very gravelly, but digos might occur rarely or locally along the fringes of the ruts or in the valleys. From the SE slopes of the Sa Pinto there is good desert all the way to the ruts to the west & south. Desert also occurs to the east of the road for about 1/4 mi. Immediately south of the San Pinto the soil is still quite gravelly, but is sandy in spots; the desert becomes less & less gravelly as you continue southward. In fact some sign of Digodomyops deserti was seen nearly to the San Pinto, but became much more abundant southward. A dirt road to El Valle de la Trinidad leaves the highway 23.8 mi. S of La Ventana (32.5 mi. N by rd. San Felipe); just 5 & Km marker #149). We stopped now this far,