rl38 



NEW YORK STATE MUSEUM 



southerly exposure. This bed is not the one that is worked at 

 the Hatch hill quarries; for the direction of the strike of the out- 

 crop would carry this bed a quarter of a mile, or more, west of 

 the quarries. The outcrops of red slate on the road to Truthville, 

 | of a mile southwest of the quarries, are probably in this bed. 

 A few small openings have been made on this stratum just north 

 of the Whitehall road, on the Van Falkenbury farm, and have ex- 

 posed of a very fair quality of slate. The cleavage dip 1 is 30° e 15 s. 



The bed on which the quarries are located can be traced sev- 

 eral hundred yards north of them. It outcrops in the road and, 

 farther on, it appears in the side of a low hill for a considerable 

 distance. It is probably not more than one hundred or two hun- 

 dred yards in width, though it is impossible to estimate its width 

 with accuracy. One quarry owner says that the red slate belt 

 i? 30 miles in length and G5 rods in width at Hatch hill. Pos- 

 sibly it is, but there is no evidence on the surface to justify such 

 a statement. 



The Hatch hill quarries are located in a slight depression, 

 along an approximately straight line J of a mile in length, which 

 follows the direction of the cleavage strike s 8° w. Plate 26 is 

 a general view of these quarries taken from the north. The 

 continuation of the red slate is below the camera on the right; 

 in the foreground is green slate overlying the red. 



There are 10 quarry openings in this group, only three of which 

 were being operated in the fall of 1898. Beginning at the north- 

 ern end, the quarries are as follows. 



Hatch hill quarries 



No. 



1 I. Herbert 

 2 



3 National red slate eo. 



4 I. Herbert 



5 R. A. Hall 

 6 



7 Flaherty & O'Brien 



8 Thorn 



9 New opening 



10 Baker red slate eo. 



active 



idle 



active 



idle 



active 



idle 



idle 



(4 



40' square 



240' x 40' 

 60' x 50' 



100' x 66' 

 50' square 



10' x 6' 



40' x 20' 



90' x GO' 70' deep 

 50' x 40' sidehill 



> i 



J A11 directions of dip and strike refer to the magnetic north. 



