Stevenson.] lUU [August 20, 



Below this, the succession is very indistinct along the tliree lines on 

 which a section was attempted. The cherty limestone contains many 

 fossils, but they are not well preserved, and the species are indistinct. 



Below the rocks of the section is a series of shales and sandstones, in 

 which are found the fossil ores of this group. No estimate of the whole 

 thickness was made. 



The Clinton rocks are well shown on the south side of Poor valley, and 

 from the northern face of Poor Valley ridge. They occur on the north side 

 of Wallen's ridge above the mouth of South Fork of Powell river, and are 

 well exposed along the southerly face of that ridge for several miles. They 

 appear also on the south-easterly slope of Powell mountain beyond the 

 North Fork gap. At all of these localities the fossil ores are found. 



Three beds of ore were seen in the Poor Valley region. The highest be- 

 longs probably within the concealed interval No. 7 of the section. It 

 shows itself in the bank of Powell river at about half a mile from the gap 

 with a thickness of from 5 to 8 inches, and a dip of 56 degrees toward 

 N. 25° W. It is included in greenish shales, which are rich in Fucoids. 



The second bed crops out in the "bottom" at say half a mile further 

 down the river. It is important, and has the following structure : 



Hard ore 4' 8" 



Soft ore 2' 6" 



The upper layer has very fair ore in its lower 20 inches, which could be 

 used in a furnace. It is harder than the tender fossiliferous ore below, and 

 contains fewer fossils, but it is much less hard than the other part of this 

 layer. The strike is N. 40° E., and the dip is 45 degrees. The bed was 

 followed for a considerable distance, but no material variation in thickness 

 was observed. 



A third bed was seen near Cedar gap, but the exposure there is some- 

 what indefinite. The hard ore predominates, and is far from being good. 



The last two beds occur on Wallen's ridge at but a little way above the 

 mouth of South Fork of Powell river. 



Two beds only were seen on the south face of Wallen's ridge along 

 Wildcat creek, a tributary to the South fork. One of these is 25 inches 

 thick, and dips at 10 degrees in an almost east direction. The other bed 



shows : Soft ore 2' 



Hard ore 2' 2" 



overlying one foot of ferruginous shale, which rests on a flaggy sand- 

 stone. The upper part of .the soft ore is almost granular, and can be re- 

 moved with a shovel, but it is inferior to the other part, and contains 

 many small rounded quartz pebbles. The hard ore shows very few fossils. 

 The dip is 11 degrees and almost due east. 



The ordinary ore of this region is very good, as appears from the follow- 

 ing analysis by Mr. McCreath, of a specimen from Wallen's ridge : 



