THE MINING AND QUARRY INDUSTRY I906 33 



confined to the central part of the belt for a distance of about 2000 

 feet along- the outcrop. There are three parallel veins in this part. 

 The principal underground workings are the Hall slope and the 

 adjacent nos. 3, 4 and 5 slopes situated on the front vein. The 

 greatest depth reached is about 1400 feet on the incline, or 800 

 feet vertically. In the bottom of the Hall slope the horizontal drifts 

 are about 200 feet wide. On the back vein the Burden and Cannon 

 open pits, southeast of the slopes named, have continued to furnish 

 a large quantity of ore. 



The furnace of the Northern Iron Co., located at Standish near 

 Lyon Mountain, is run on concentrates from these mines, the pro- 

 duct being low phosphorus pig iron that finds a special market. 

 Shipments of concentrates are also made to Pennsylvania furnaces. 



Arnold hill. The Arnold Mining Co. closed down its mines 

 and mill during the summer. Though the ore resources can not be 

 regarded as exhausted, it was found difficult to maintain the pro- 

 duction at a rate that would supply the mill for continuous run- 

 ning. The ore body that has been mined is irregular and showed 

 evidences of pinching out in depth. There are several other de- 

 posits on Arnold hill, as well as on the adjacent hill to the east, from 

 which an adequate output for the mill might be derived if properly 

 developed. 



Cheever mine. It is expected to begin ore shipments once 

 more from this mine during the present year. The property has 

 been inactive since 1893. According to the plans drawn up by 

 Mr O. S. Presbrey, the owner, the Weldon shaft on the south end 

 of the ore outcrop will be first reopened. There is known to be a 

 quantity of ore still unworked in this section. A mill will be 

 erected near the shaft for concentrating the leaner magnetite that 

 has been stocked on the surface from previous operations and of 

 which much remains in the mine. The ore previously shipped 

 consisted entirely of lump material running 60 per cent or over 

 in iron. 



The Cheever mine is situated about 2 miles north of Port Henry 

 close to the shore of Lake Champlain. It is based on a series of 

 deposits that can be traced along the strike for nearly a mile. For 

 a few hundred feet from the outcrop the ore dips sharply to the west 

 or southwest, but then continues nearly horizontal, slightly rising 

 in places, toward the ridge of gabbro which cuts it off on the west. 

 It is frequently faulted and intersected by dikes. The old workings 

 are said to cover an area of 40 acres. The deposits range up to 20 

 feet thick. 



