CHArXER XIIl. 



OTHER DEPOSITS OF THE PACIFIC SLOPE. 



Besides the eight districts described in the furegoiiig chapter, there are 

 many less important locahties in which cinnabar lias been found and from 

 which more or less metal has been extracted. A considerable number of 

 these have been visited by myself or by members of my party and others 

 have been described by previous observers. Such notes on these occur- 

 rences as are available will be presented in this chapter. Many facts con- 

 nected with these deposits are of great geological interest, but, on the other 

 hand, a large number of the deposits are so similar that it is impossible to 

 avoid monotony in their description. 



The quicksilver belt. — The quicksilvcr belt of California cannot be said to 

 be continuous to the north of Clear Lake, for between that sheet of water 

 and the next deposit to the north there is a long stretch of country. It is 

 possible, indeed, that cinnabar may yet be met with in this interval, which 

 is very inaccessible and has been but little explored. The chances, how- 

 ever, seem against it, for the volcanic plienomena which are associated 

 with so many of the deposits to the south seem to be absent between Clear 

 Lake and the neighborhood of Mt. Shasta. There are cinnabar deposits at 

 the northern end of the Coast Ranges, however, in the northeastern corner 

 of Trinity County, and some fifteen miles from the edge of the volcanic 

 rocks of the Mt. Shasta region. Cinnabar again appears in the Cascade 

 Ranges of Oregon, which, as is pointed out in Chapter V, I regard as a 

 northern continuation of the united Sierra Nevada and Coast Ranges of 

 California. These occurrences to the north are thus on a continuation of 

 the group of profound dislocations which are niarked by the ranges and 



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