^2 NEW YORK STATE MUSEUM 



from Glens Falls southward into Orange county and also in the 

 Mohawk valleys as far west as Rome. The sandstone beds are 

 usually fine grained, of grayish color and rather thinly bedded. 

 Over wide stretches they provide practically the only resource in 

 constructional stone and consequently they have been quarried at 

 a great number of places to supply the local needs for building and 

 foundation work. Some of the stone is crushed for road metal and 

 concrete. 



The Medina sandstone is found along the southern shore of Lake 

 Ontario from the Niagara river east to Oswego county; in central 

 New York it is represented by a coarse conglomeratic phase called 

 the Oneida conglomerate. As developed in the western part of 

 the State, where it is principally quarried, it is hard fine-grained 

 sandstone of white, pink and variegated color. The pink variety 

 is specially quarried for building stone and has an excellent reputa- 

 tion. Many of the larger cities of the country and most of the 

 important towns and cities of the State contain examples of its 

 architectural use. The large quarries are situated in Orleans county, 

 near Albion, Holley and Medina, along the line of the Erie canal, 

 but there are others at Lockport and Lewiston, in Niagara county, 

 and at Brockport and Rochester in Monroe county. The Medina 

 sandstone also finds extensive applications for curbing and flagging 

 and for paving blocks. It is employed more extensively for the 

 latter purpose than any other stone quarried in the State. 



The Shawangunk conglomerate is more widely known for its use 

 in millstones than for constructional purposes. It outcrops along 

 Shawangunk mountain in Ulster county and southwesterly into 

 New Jersey, with an outlier near Cornwall, Orange county. The 

 quarries near Otisville have supplied considerable quantities of stone 

 for abutments and rough masonry. 



The Clinton sandstone is mainly developed in central New York, 

 being absent from the Clinton belt in the western part of the State. 

 It forms ledges of considerable extent on the south side of the 

 Mohawk valley from Ilion to Utica and beyond. It consists of 

 reddish brown and gray sandstones, of medium texture and hard- 

 ness. The stone has been used for foundations and building in 

 Utica and other places in the vicinity. 



Of the Devonic formations which cover about one-third the 

 whole area of the State, the Hamilton, Portage, Chemung and 

 Catskill contain important sandstone members serviceable for 

 quarry operations. These sandstones are popularly known as blue- 

 stones, a name first applied in Ulster county where they are dis- 

 tinguished by a bluish gray color. They are for the most part fine 



