PLATE 3] 
a 

A. Fault-scarp passing thru saddle at head of Wood Gulch, looking south-southeast. 
F.E. M. 

C. Looking south-southeast from Telegraph Hill along fault-trace marked 
by sharp-crested ridge in foreground, with upthrow of 4+feet. F,E,M, 

B. Auxiliary fault-trace following old scarp in saddle between Wood Gulch and 
Humboldt Creek. F. EM. 

D. Looking north-northwest along main fault marked by small ridges 
on spurs of Telegraph Hill. F. E. M. 
