272 
GEOLOGY OF THE SECOND DISTRICT 
lively unimportant. At one locality, however, it forms a good building stone. I refer to 
some quarries which have been opened within a short distance of Westport. Though it might 
not polish very perfectly, still it is sufficiently fine for the linings and backings of grates, fire¬ 
places, etc. At all places where it occurs in Essex, it passes into the chazy limestone, which 
it resembles in more respects than one. 
C9. 
View of a fracture and Uplift of the Chazy Limestone at Essex. 
CiiAZY Limestone. 
Commencing my description of this rock as it exists in Essex county, and at the most 
southern point at which it appears, I shall first remark, that I must speak with some doubt of 
its existence at Crown-Point, unless at the extreme of Long point, as it is usually called, or 
at the old fortress, celebrated in the early history of this country. In order to speak with 
certainty on this subject, I should be obliged to make another examination of the spot. The 
limestone at this place is black, and possesses some of the characters of the calciferous sand- 
rock, together with one or two fossils which are of a doubtful character: a strophomena 
occurs here, which has a resemblance to one in the Mohawk valley, in the upper part of the 
calciferous sandrock. Still I am disposed to consider this dark colored rock as the chazy 
limestone ; and it is highly probable that a thin portion of the trenton may also be found here, 
the birdseye being wanting. 
