1012 NEW YORK STATE MUSEUM 



The upper Cashaqua beds are also exposed along a small brook 

 that comes into the valley on the east side y 2 mile south of the 

 Wyoming railroad station. 



In a ravine on the west side of the valley, 2 miles south of 

 Wyoming, 150 feet of^the Hatch shales are exposed, and in an- 

 other ravine about 2 miles farther south 120 feet of the strata 

 next higher in the section. 



A flaggy band that occurs near the top of the exposure in 

 the latter ravine is probably in the horizon of the Grimes sand- 

 stones, but it is proportionately less arenaceous. 



In the Fall brook ravine y 2 mile southwest of Warsaw there 

 are 236 feet of shales and flags exposed below the Erie Railroad 

 bridge. They are all in the horizon of the middle portion of 

 the Gardeau beds, or that of the Lower and Middle falls at 

 Portageville. 



Gibson's glen is a ravine on the west side of the valley 2y 2 

 miles south of Warsaw, that ends in a high fall, above which 

 the basal layers of the Portage sandstones outcrop. About 150 

 feet of flags and shales are exposed below the sandstones. A 

 thin layer of soft shale at the mouth of the glen contains many 

 flattened concretions, in some of which finely preserved fossils 

 occur. 



A few fossils occur in all parts of the Gardeau division in this 

 valley, but they are much more common near the bottom and 

 toward the top than in the middle of it. 



In the ravine of Oatka creek, at and below the falls near 

 Rock Glen, about 100 feet of Gardeau flags and shales are ex- 

 posed and the lower layers of the Portage sandstones outcrop 

 along the stream above the falls. 



The old quarries of the Warsaw Bluestone Co. on the west 

 side of the Erie Railroad, near the village of Rock Glen, show 

 about 50 feet of the lower part of the Portage sandstones, and 

 the upper part outcrops along the little brook southwest of the 

 quarries. 



