UNIV CALIF. PUBL. BULL. DEPT. GEOL 



[BAKER] VOL. 7, PL 10 



Fig. 1. — General view of the outcrop of the Rosamond on the north flank of the El Paso 

 Range. In the foreground is the metamorphic series and intrusive diorite-porphyry overlain 

 uneonformably by basal Rosamond. The dark capping of the hogback in the middle dis- 

 tance is the lower interbedded basalt flow. Farther back is the debris slope of Sierra 

 alluvium, with the peaks of the Sierra on the horizon. Characteristic strike valleys, 

 excavated in the Rosamond, are seen in the middle distance. 



Fig. 2. — Recent dissection of the alluvium and underlying Rosamond, three-fourths mile 

 northwest of Ricardo post-office. The even surface of the alluvial mantle and the northwest- 

 ward dij> of the Rosan I st lata arc to be noted. This is one of the best of the fossil localities. 



