QUARRY MATERIALS OF NEW YORK 1 25 



A number of quarry sites mentioned in the earlier descriptions of 

 the industry by Smock and others have been converted into building 

 plots or otherwise utilized so as to exclude their further exploitation 

 for stone. Some of the more important of the old quarries, not 

 now worked, will be mentioned here for the purpose of record. 



The Valentine quarries are described by Mather as operative at 

 the time of this report (1842) and are also referred to by Smock. 

 They were situated 2 miles southeast of Yonkers, on the Mount 

 Vernon road. They were worked at intervals when Smock made 

 his report and have since been abandoned. 



A quarry on the Stewart estate, near Dunwoodie, was worked 

 for several years by O'Rourke Brothers of Yonkers. It supplied 

 rough and cut building stone and crushed stone. Production 

 ceased in 1908. 



The McCabe quarry in the town of Scarsdale, about a mile east 

 of Hartsdale, was opened in gneiss similar to the Yonkers, but 

 lying off the main belt. The output was mainly crushed stone, with 

 some rough foundation stone. The quarry has been idle for about 

 ten years and will not again be worked. 



An unnamed quarry, situated about an eighth of a mile north of 

 the preceding, in the town of White Plains, near the Cambridge 

 road, was operative a few years ago, but has now been permanently 

 abandoned. It produced rough and cut building stone and road 

 material. There was much waste, owing to pegmatitic admixture 

 and the closely spaced joints. The opening was 400 feet long, ex- 

 posing 40 feet of a light variety of gneiss, not distinguishable from 

 the Yonkers in its characteristic occurrence. 



A small quarry once existed in the town of North Castle, about 

 a mile northeast of Silver Lake, and was known as the Collins 

 quarry. The rock, according to Eckel, was reddish foliated gneiss 

 of the Yonkers type. Production was restricted to local needs and 

 it has been closed in recent years. 



The quarry once worked by Dennis Cahill and situated on Reid- 

 land avenue, east of Central avenue, has been permanently closed. 



The Flannery quarry in the same vicinity has produced a small 

 quantity of stone in recent years, but will not be worked in the 

 future. 



The Seely quarry, one-half of a mile west, of Scarsdale, has been 

 abandoned many years and probably will not again be worked. 



The Ferris, Dinnan and Outlet quarries are old openings in the 

 body of Yonkers gneiss near Valhalla. 



