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Preliminary photointerpretation map of landslide and other surficial deposits of the Concord 15-minute quadrangle and the Oakland West, Richmond, and part of the San Quentin 7 1/2-minute quadrangles, Contra Costa and Alameda Counties, California
T. H. Nilsen
1973, Miscellaneous Field Studies Map 493
This map presents preliminary information about one aspect of the physical environment necessary to sound land-use planning- the nature and distribution of surficial deposits.  Because surficial deposits are common and well developed in much of the bay region, it is useful to know how and why they have formed, as...