^GRANITE. 
527 
ten cutic feet and over, at thirty-five cents prex cubic foot, or five dollars and ninety cents per 
ton. The dressing of this stone for the arches is done at fourteen and a half cents per super¬ 
ficial foot; and about two and a half superficial feet are dressed to the cubic foot, which make 
the stone dressed, ready for the arches, cost seventy cents per cubic foot, or nine dollars and 
ninety-seven and a half cents per ton. 
This quarry is capable of being worked at least seventy yards in depth, over an area of 
several acres ; and allowing a profit of one dollar per cubic yard, which is a low estimate, and 
4840 square yards to the acre, fifty yards in depth ought, in the course of working, to give a 
profit of 242,000 dollars to the acre. 
Stony-point, one mile northwest of Coldspring, 'Putnam county. 'This is a rocky peninsula, 
stretching into the Hudson about one-fourth of a mile. It is composed of gneissoid rocks, 
except the northwest point of the peninsula, •which is a granitic rock of the same character as 
that of Blunt’s and the Highland Company’s quarries. About two acres of this peninsula are 
covered by this rock, to an estimated mean depth of forty-five feet above high-water mark ; 
and it may be estimated that there are 145,200 cubic yards of granite capable of exploration 
on this point. It may apparently be split out in masses of any size, up to one hundred tons 
or more, in regular blocks; and it lies immediately on the Hudson river, and with such a 
depth of water that large vessels may come immediately alongside of the rocks, to be quarried, 
so that the blocks may be swung on board with a crane. 
Stony point is owned by Mr. Phillips of Phillipstown, who was not aware of the existence 
of such a location for a granite quarry, until he was informed of it during the progress of the 
survey of Putnam county in 1840. 
Phillips's quarry. This bblongs to the same gentleman as the preceding. It is located on 
the Phillips estate, about half a mile from the Hudson river, and one and a half miles east- 
northeast of West-Point. The rock is perfectly indestructible, and would be called granite 
by those who should see the blocks without seeing the quarry. It is gneiss, in' thick layers 
or plates, which have a slight inclination to the west, while the grain of the rock is nearly 
verlical. It splits easily, both in the direction of the grain and across it. It may be procured 
in the form of blocks of five to ten or more feet square, and of the thickness of the plates of 
rock, which are from one to four feet thick. Some masses were seen which had been split 
off for columns for store fronts, twelve to fourteen feet long, by one and a half, one and three 
fourths, and two feet square. 
The rock at this quarry is of a light grey color, almost white, and is a beautiful material 
for building. It is durable, of sufiicient strength, easily dressed and easily quarried, and the 
stone can be transported to the banks of the Hudson for three to four cents per cubic foot. 
The extent of this rock was not ascertained ; but there is an area of at least ten acres, with 
a mean depth of sixty feet, or 26,136,000 cubic feet, or 968,000 cubic yards of this granitic 
gneiss, or about 1,900,000 tons. 
There is a location suitable for quarrying in Putnam county, about three and a half miles 
