84 NEW YORK STATE MUSEUM 
Other members of the Sterling group. About 5 miles south of 
the Lake and Sterling mines a subsidiary belt of magnetite begins 
near the state line, trending in a northeasterly direction. 
On the southern end of this belt the Steele mine was opened, and 
on the northern end, the Crawford. About one-fourth of a mile 
west of the Crawford the Brennan pits were sunk in order to pros- 
pect what seems to be another body of magnetite. 
In addition to these mines, and under lease to the same operating 
company, another subsidiary belt of magnetite lies less than a mile 
west of Tuxedo lake; on the southern end of this belt is the Red- 
back mine. Two isolated occurrences, the Morehead and the Bering, 
complete the group. 
The Steele mine. Outcropping on a ridge about 800 feet A. T., 
a band or belt of magnetite was opened primarily by a few pits at 
the southern end. Later the Ramapo Ore Company, operating all 
the mines of the Sterling, Scott and Red-back groups, trenched the 
ore-band at intervals across the strike and prospected it along its 
outcrop northeastward to the adjoining valley. All these pits and 
trenches are very shallow and narrow, and not in all cases is ore 
exposed ; in many places the direction of the ore-band may be deter- 
mined only with the dip-needle. 
In the southernmost pit the strike of the rock is north 50° east, 
the dip varying from 28° to 32° southeast; the ore body pitches 
27° northeasterly. The width (or thickness) of the ore in this pit 
is about 6 feet, but the ore is not solid magnetite. It is a streaked 
mixture of rock and ore, with stringers of ore cutting the structure 
of the rock and fading away, similar to the structures seen in 
places in the Lake mine (figure 4). The rock is modified Pochuck- 
Grenville, and associated with the ore is a pinkish granite which 
may be Pochuck granite; no petrographic study was made of it. The 
next pit to the north, a trench cut across the strike, reveals a narrow 
crush-zone due to a transverse fault of small throw striking north 
2omiiweste 
The fault has offset the ore body a trifle and has broken the ore 
considerably. In the next pits to the north the strike is north 30° 
east; here pronounced roll structures are shown, the axes of the 
rolls striking at a small angle to the direction of the dip of the 
rock-structure, so that a series of minor, closely spaced and second- 
ary anticlinal and synclinal rolls appear from pit to pit along the 
strike. There is no ore exposed in these pits. 
One of the interesting features of the geology of this band of ore 
