Geology of West Coast Region of United States 

 Coal is an important product of the Tertiary 

 strata. In California the coal is of poor quality 

 and erratic in distribution. Better deposits occur 

 in Coos Bay, Oregon; and in Washington and the 

 adjoining portions of Canada, the great deposits of 

 the Puget Sound region occur. Washington coal, 

 to some extent, has been replaced by California 

 fuel oil, but at some future date the former will 

 assume increased importance when the necessity of 

 conserving the vast California oil deposits becomes 

 more evident. 



Other non-metallic products of Cretaceous and 

 Tertiary age include asphalt, bituminous rock, onyx, 

 and travertine, bauxite, clay, fullers earth, diatomite, 

 and pumice, road metal and construction material. 



Mineral Products of California, Oregon, and 

 Washington, for the Year 1913, from "Min- 

 eral Resources of the United States" (1914), 

 purlished by the u. s. geological survey. 



•For California: Other products, briquets, feldspar, ful- 

 lers earth, infusorial earth, iron ore and pig, manganese ore, 

 pumice, quartz, sulphuric acid, and tungsten ore, are Included 

 in miscellaneous. 



♦For Washington: Briquets, mineral paints, sand-lime 

 brick, are included in miscellaneous. 



57 



