rl76 NEW YORK STATE MUSEUM 



Johnsons, Orange co. A small quarry in the blue limestone, 

 situated about 2 miles north of Johnsons, in the town of 

 Wawayanda, is worked at intervals for stone and lime. The 

 quarry is located on land owned by S. M. House, and is worked 

 by Wilber Brown. Most of the product is burned into lime and 

 used locally. 



New Milf ord. Orange co. Several small quarries in the Barnegat 

 limestone are located within a few miles of New Milford. They 

 are worked only at intervals, and the product is chiefly used for 

 foundation stone. 



Monroe, Orange co. A small quarry (TO) has been worked about 

 a mile south of Monroe. The product was used locally for foun- 

 dation and retaining wall work. 



Warwick, Orange co. Limestone is quarried near Warwick by 

 Thomas Burt. The product is small, the quarries being worked 

 only at intervals, and is mostly used for structural work. It is the 

 usual blue magnesian (Barnegat) limestone. 



Newark limestone conglomerate 



Along its contact with the pre-Cambrian and Paleozoic rocks, 

 the lower beds of the Newark system are frequently conglomer- 

 atic. In certain localities the included pebbles are limestone, 

 and in a few places the calcareous portion of the conglomerate 

 is so much larger in amount than the shaly matrix as to permit 

 the use of these rocks for lime. A characteristic exposure of 

 this conglomerate is shown on pi. 61. Several old quarries 

 (80, 81) are located in Rockland county along the northern bor- 

 der of the Newark beds, and lime was formerly burned at these 

 points. 



