The gold-quartz veins of California, in spite of many local variations, form a remarkably well defined type of mineral deposits, the salient characteristics of which it is intended to portray in this paper. The results, indicated in brief outlines, have been obtained during general and detailed mapping for the United States Geological Survey in the gold-bearing region of California.
Referring to the map of the distribution of veins, it should be stated that Inyo county, as well as the central and eastern part of San Bernardino, contains many gold deposits which have not been indicated. In many cases they carry both silver and gold, like the Comstock mines, or differ in other respects from the normal gold-quartz veins, though the latter are not without representatives. Fob many notes and valuable suggestions I am under obligation to Messrs G. F. Becker, H. W. Turner and J. S. Diller. The reports . . .