1846.] Mineral Resources of JYew York. 33 



toga, Essex, Clinton and Franklin; the specular in Jefferson and 

 St. Lawrence counties. The hematites are found only in the 

 eastern and southeastern; the oolitic in the western. The latter 

 extends more than one hundred miles, or from near Utica, west- 

 ward, and beyond Rochester. The bog ore occurs in all parts of the 

 State, in small basins, from a few rods to ten or fifteen acres in 

 extent. 



The most important of these ores is the magnetic and specular. 

 The former occurs in veins and beds, and in the condition of rocks 

 over an extent of country equal to 1,600 square miles; occupy- 

 ing a tract of country about the sources and tributaries of the Hud- 

 son river, or in that primary region which terminates near Sara- 

 toga south, and extends north nearly to the provincial line be- 

 tween Canada and New- York, and principally on the eastern 

 slope of the mountains lying between Little-Falls on the south 

 and the town of Moore on the north. The specular iron ore is 

 found only in a few townships in" Jefferson and St. Lawrence, 

 the most important of which lie in Gouverneur and vicinity, and 

 which furnish ore for the Parrish iron works at Rossie. The 

 greatest accumulation of magnetic ore at any one locality is at 

 Adirondack, in the township of Newcomb. We have on several 

 occasions attempted to determine the quantity of ore at this place, 

 by measuring the veins or the parts of the exposed beds, and we 

 have found that from 6 to 700 feet in width and between 2 and 

 3,000 feet in length of bodies of ore are exposed, or merely con- 

 cealed by a thin layer of soil. But we have satisfied ourselves 

 that the exposed beds are but a small part of the masses which 

 exist near the surface; for in the immediate neighborhood of the 

 bodies of ore at Adirondack it is very frequently exposed by 

 blasting off a few feet of rock; and so frequently does this happen, 

 that the whole valley, which is six or seven miles long, seems to be 

 underlaid with ore. We may then regard the ore at this place as 

 a rock formation, and which may be quarried as a rock and work- 

 ed out in open day, for an indefinite period. Hence it M'ill be 

 observed, that the amount of ore is incalculably great, and we 

 have no occasion to sit down and ascertain when it will probably 



No. VIL 3 



