U. S. GEOLOGICAL SURVEY 



BULLETIN 614 PLATE XXIV 



A. SINKS OF SUISUN FLATS, CAL. 



Raifroad crew at work raising and regrading a recent sink. Note upward-bulging nnud ridge on each side 



and tilted telegraph poles on the left. 



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B. VIEW ALONG THE SHORE OF SAN PABLO BAY NEAR OLEUM, CAL. 

 Terrace in middle represents raised beach that can be seen at several points around San Francisco Bay, 



