U. S. GEOLOGICAL SURVEY 
BULLETIN NO. 322 PL. Ill 
A. CHARACTERISTIC EXPOSURE OF VOLCANIC ASH NEAR BASE OF MONTEREY FORMATION. 
At point where Cuyama River enters the Santa Maria Valley. Photograph by Ralph Arnold. 
UPTURNED AND CONTORTED SEMIFLINTY MONTEREY SHALE. 
On Sisquoc River, 5 miles east of Sisquoc. Heavy oil is exuding at a point immediately to the right 
of the man. Photograph by Ralph Arnold. 
