Maryland Geological Survey 381 



being smooth are somewhat rough. This conglomerate has been likened 

 in general appearance to " peanut taffy " which as a comparison is not 

 especially far-fetched. In addition to the white quartz pebbles there 

 are occasional jasper ones some of which are one-half an inch across, and 

 a few of rose quartz. Some of the flat pebble conglomerates in the upper 

 Chemung of southwestern New York, as for example the Panama con- 

 glomerate of Chautauqua County, contain jasper pebbles so that it is 

 interesting to find them here. 



This conglomerate closely resembles the one in the upper Chemung in 

 the vicinity of Mountain Lake Park and Oakland, and it appears probable 

 that these blocks represent the northeastern extension of that stratum. 

 The blocks of this conglomerate found on the hill west of Avilton, on the 

 National Eoad and the Salisbury Eoad show that in northern Garrett 

 Coiinty it is fully as prominent as in the vicinity of Oakland and Moun- 

 tain Lake Park. 



Immediately east of the fifth mile post west of Frostburg red argil- 

 laceous shales and thin brownish-red sandstones occur. A little farther 

 east are thin bedded greenish sandstones and shales. Some of these 

 sandstones contain specimens of Spirifer disjnnctus Sowerby, and Atrypa 

 hystrix Hall. Specimens of the latter are common and similar to those 

 which appear abundantly near Deer Park except that at this locality there 

 are not such good exposures for collecting. There are a few other fossils 

 but it is not a good collecting place for the rocks are mostly covered by 

 soil. Most of the rocks weather to a yellowish-brown color and some 

 become fairly rotten, while others of a greenish color are much harder and 

 remain firm. The dip is strongly to the east. Near the bottom of the hill 

 are outcrops of olive to buff shales and thin sandstones. In one of the 

 layers of sandstone are large numbers of crinoid stems. Eed argillaceous 

 shales succeed the buff ones in which some of the layers are 1 inch thick. 

 The dip is 42° about S. 60° E. 



In the field to the south of the road and across the run at the foot 

 of this hill are rather common blocks of a flat pebble conglomerate which 

 also breaks with a smooth fracture across the pebbles; but the writer is not 

 sure whether they are from the one described to the west or not. Associated 



