GRESHOLM, an island, situated off the hundred of RHOS, county of PEMBROKE, SOUTH WALES, six leagues (N. W.) from Milford
Haven. This is one of the largest and most central of a line of isles and rocks which extends in a westerly direction, at
some distance from Skomar Isle on the coast of Pembrokeshire, and terminates at the " Smalls," on which is a lighthouse.
Gresholm is lofty, steep, and nearly circular, and is generally the first land seen on approaching Milford from the west.
Between this island and the " Smalls," but nearer the latter, is a ledge of rocks, about a mile long, which are visible at
low water, and are named the "Hats and Barrels ;" and about a league from Gres-holm, nearly in the same direction, are
others, called " Skettle," or " Kettle bottom." All these rocks are extremely dangerous to navigation, as the sounding is
upwards of thirty fathoms immediately to the north and south. At the distance of a league from Gresholm, north by west,
lies a sunken rock, named the " Pope ;" and three leagues to the north-east is the " Augre bank," or " Taradr," connected
with the "Mascus," a piece of foul ground which is occasionally dry at low water. This range of rocks presents such
opposition to the flood tide, that it is generally high water on the coast from two to four hours before it manifests
itself amongst them; and the ebb tide is of course equally late.