rl46 



NEW YORK STATE MUSEUM 



Thomas Williams operates a small red quarry 1 mile south of 

 Granville. Plate 35 is a view of this quarry. The cleavage dips 

 40° e 20° s and strikes s 20° w. Considerable of the waste ma- 

 terial from this quarry is used on the local roads. Slate is too 

 soft and brittle to be a good road metal and has to be frequently 

 renewed, but it packs to a smooth, hard surface, and most of the 

 best roads about Granville are of this material. 



A mile south of the Williams quarry are two small openings in 

 the red slate. One of these on F. Sweet's farm is new, and, though 

 the cut is scarcely 10 feet deep, a number of squares of excellent 

 red slate have been produced. The cleavage dip is 38° e 7° s and 

 the strike is s 7° w. This opening is within a few rods of the 

 Vermont line, and it is a curious fact that no trace of red slate 

 has been found in that state. 



The old Dennison quarry, nearly opposite West Pawlet (Vt), 

 which is now idle, shows the strike of the slate to be about the 

 same as in the Williams and the Sweet quarries. The change 

 in direction of the strike just south of Granville is indicated m 

 the topography by a similar change in direction of the long axes 

 of the hills. The westward trend of the slate belt carries the 

 red slate west of the Granville meridian, and it outcrops in the 

 village of Slateville, township of Hebron. The quarries of the 

 Manhattan red slate co. are located here, and they mark the 

 southern limit of the red slate industry. The cleavage dip is 

 32° e 7° s and the strike is s 7° w. The quarries are large and 

 well located, and the stock on hand is of exceptionally uniform 

 color and grain. Apparently, this is one of the most advanta- 

 geous quarry sites in the region, but it is idle, because, it is said, 

 of lack of capital to start with after the late business depression, 

 which greatly affected the slate industry in this region. 



Roofing material from this quarry was awarded first premium 

 at the centennial exposition at Philadelphia in 1876. 



There is a smaller red quarry a few hundred rods north of the 

 Manhattan quarries, which is also idle. 1 mile north of South 

 Granville is another small red quarry which is idle. 



