In  an open space amid the hills is a small conical hill called Cruach, or "the Heap," in which is a vein of rich lead-ore containing a considerable proportion of silver: this was formerly worked to a great extent. In the neighbourhood are large beds of sand, and appearances of limestone.

The vicinity of Pembrokeshire is marked by a romantic wildness of peculiar character; the hills, which rise precipitously, are covered with bold and rugged rocks, and between these irregular elevations are small patches of the finest land, well watered and sheltered. The parish is in the diocese of Waterford: part of the rectory forms one of the denominations constituting the corps of the deanery, and the remainder one of those constituting the corps of the archdeaconry; the vicarage is in the patronage of the Bishop. The tithe rent-charge is £169.13.4., of which £59.8.4 are payable to the vicar and the remainder to the apropriators; there is a glebe of 12 acres, of which 8 belong to the rectory, and 4 to the vicarage.

n the abrupt conical eminence called Sugar-Loaf hill, is a perfect cromlech composed of four oblong masses of rock placed on end, and supporting a table-stone of considerable magnitude, at a height of about 20 feet; underneath, in the centre, is a single stone of inferior height. Close to this cromlech are the ruins of the parish church. In the neighbourhood of Pembrokestown is a smaller cromlech, also an ancient fort or rath.