Diller — Klamath Mountain Section, California. 347 



much attention.* The principal limestone bodies rich in fossils 

 occur near Klamath and on Hazel Creek. Smaller masses 

 outcrop near Horsetown and at a number of points six, eight 

 and eleven miles northeast of Redding, where they lie close to 

 the Carboniferous in line with a larger mass two miles north- 

 west of Baird. 



One of the best sections of these rocks, but not including 

 the whole Devonian series, may be obtained on Backbone 

 Creek three and one-half miles north of Kennett, where nearly 

 900 feet of sediments are quite fully exposed. 



1. Conglomerate 30 feet. 



2. Shales 



3. Limestone 



4. Shales 



5. Limestone 



140 



100 



300 



250 



6. Siliceous shales 75 



Many quartz pebbles and numerous 

 holes from dissolved limestone frag- 

 ments, some of which contain fossils 

 like those of the limestones below. 

 Unconformable on 2. Possibly Car- 

 boniferous. 



Mostly dark with some thin sandy 

 beds. 



Rather massive, and light colored, 

 little chert but full of corals, etc. 

 (6242). 



Thin bedded sandstones and shales 

 which are cherty and gray below. 

 Near middle part is limestone lens 

 10 to 15 feet thick. 

 Thin bedded and crowded with mas- 

 sive, branching and cup corals (6244). 

 Cherty nodules and bands in bluish 

 limestone becoming whitish and 

 without chert below. 

 10 feet of banded chert at top with 

 sandy shales, black shale and fine 

 shaly sandstone, very thin bedded, 

 resting on the igneous rocks below. 



A large number of fossils were collected from the Devonian 

 of the Redding Quadrangle, and these may in large part be 

 referred to the section given although but few of the fossils 

 were actually collected at the point where the section was 

 measured. After enumerating a number of the species found 

 at various localities, Mr. Schuchert concludes as follows : 



*H. W. Fairbanks, Cal. State Mining Bureau, 11th Ann. Rept., 1893, pp. 

 47-49. Also Am. Geol., xiv, 30, 1894. J. S. Diller and Chas. Schuchert, 

 this Journal (3), xlvii, 416, 1894. J. P. Smith, Jour. Geol., ii, 391, 1894. 

 F. M. Anderson, Cal. State Mining Bureau Bull. No. 23, 1902, pp. 39-102. 



