U. S. GEOLOGICAL SURVEY 



BULLETIN 6^A■ PLATE XX 



A, SUGAR LOAF, NEAR WEST BASE OF MOUNT SHASTA, CAL. 

 A lava cone without cinders in its make-up or a crater on its summit. Photograph by Weister Co., Portland 



B. MOSS BRAE FALLS, NEAR SHASTA SPRINGS, CAL. 



