Granites, Syenites and Gneisses. 31 



is ten to twenty-five feet deep. The dip is 20 to 25° S., 70° E. One 

 system of joints runs vertically SE.; a second S. 70° E. and dipping 

 75° S. SW. The rock is a hard, solid, thick-bedded, granitoid 

 gneiss, with little mica. The firm outcropping ledges about these 

 quarries show the durability of the stone where exposed to the 

 weather. The library building, and the old riding academy, and 

 three of the professorial residences, as well as long lines of retaining 

 walls, are constructed of the native rock from these quarries. The 

 quarries and these examples of the use of gneiss in the Highlands 

 are instructive and suggestive of other localities for opening such 

 stone, and for its use where strength and solidity are wanted. 



Storm-King Mountain Quarry. — Granite has been quarried 

 from the south-east face of Storm-King mountain, near the West 

 Shore railroad track, and a half a mile south of Cornwall station. 

 The property is owned by M. C. Lawrie of New York. Great masses 

 of rock have been thrown down by blasting, and subsequently broken 

 up for building stone and into paving blocks. This stone has been 

 used in buildings in New York city, and also in Washington, D. 

 C. The cliff is about 100 feet in vertical height above the railroad 

 track. The location is convenient to both the railroad and the water, 

 and there is no pumping or hoisting as is necessary in the excavation 

 from a quarry. The stone is a gray, moderately coarse-crystalline 

 mixture of feldspar, quartz and a little mica. Its durability is attested 

 by the scarcely weathered surfaces of the exposed ledges of the face. 

 The locality has not been worked for several years. 



Breakneck Mountain Quarry. — Granite has been quarried at 

 several points on the south side of this mountain and north of Cold 

 Spring. It is at least sixty years since the locality began to be 

 worked. And at long intervals quarrying has been carried on up to 

 the present time. These quarry sites extend back nearly a mile from 

 the river. The work has been to detach blocks of large size by blasts, 

 and then to break them up into convenient sizes for building stone or 

 into paving blocks. The present quarry is on lands of Lewis J. 

 Bailey, and is worked for both building and paving stone, the latter 

 by William V. Smith of New York. And a crusher breaks stone for 

 roads. The quarry is at the east side of the railroad, and extends up 

 the mountain side to a height of 500 feet. The stone are shipped by 

 boats at dock on the property. The stone is a gray to gray- white, 

 coarse-crystalline hornblendic granite. 



