OQUIRRH MOUNTAINS. 453 



Owing to want of time, the structure of tlie range north of Connor 

 Peak was not satisfactorily made out. Enough was seen, however, to 

 show that the beds of this portion of the range had been pHcated into east 

 and west folds, as if they had been crushed against some unyielding mass 

 at the northern point of the range. 



At the extreme northwestern point, the beds dip 70° northwest, with a 

 strike of north 45° east. These beds along the foot-hills are composed of 

 white and iron-stained quartzites, which have been designated by the color 

 of the Weber Quartzite, though they may only represent some of the inter- 

 calated siliceous beds in the upper part of the Wahsatch limestone. Fol- 

 lowing the point of the mountain eastward, the beds assume a northeast 

 strike, passing over a steep anticlinal fold. From the limestones exposed 

 opposite Black Rock at 800 to 1,000 feet below the uppermost beds shown, 

 thougli it was impossible to determine at what depth below the quartzites 

 already mentioned, were obtained the following fossils, whose general 

 aspect is rather that of the lower beds of the Lower Coal-Measure group: 



Prodiictiis semireticulatus. 



Productus Prattenianus. 



Streptorhjnchus cfenistria. 



Spirifer opinius. 



Fenestelld. 



Polypord. 



Trematopora. 



Within these limestones is an interesting bed of fine-grained white 

 sandstone, of loose, friable texture, made up of rounded grains of limpid 

 quartz, differing essentially from most of the siliceous beds, which are gen- 

 erally compact and almost vitreous. Passing still to the eastward, two more 

 short anticlinal folds are crossed, and at the noi*tlieastern point the lime- 

 stone beds are overiaid by easterly-dipping quartzites, among which is one 

 having the same curious cavities found in the quartzite beds of Weber 

 Canon, which are doubtless the cavities left by some organic remains. A 

 yellow sandstone is also found among the quartzites. The outlying hills 



