On the sloping brow of a lofty hill, having a western aspect, is a circular enclosure, formed by loose stones but arranged in a systematic way, and measuring rather more than half a mile in circumference. Some scattered heaps within it are supposed to have been habitations, but nothing now appears to justify the notion. This curious circus is called Caer Drewyn, and Owen Gwynedd is said to have been encamped within it while the army of Henry the Second lay on the opposite side of the vale. A situation so commanding could not have escaped the notice of the prudent Glandwr, who frequently took shelter within this rude fortress, from which he had a free and uninterrupted view of his native vale of Glan-Dwrdwy. About one mile from Corwen is Rûg, the beautiful seat of Colonel Vaughan. BARMOUTH. A SEAPORT town in the county of Merioneth, is situated at the embouchure of the river Maw or Mawddach, which is obstructed at its entrance by a bar, and hence the origin of the Welsh name Abermaw, and the English Barmouth. The old town almost hangs over the sands, being built in parallel rows along the front of a steep rock, and upon so inconvenient a plan that the windows of all the houses, except those in the lowest street, are annoyed by the smoke ascending from the chimneys of those below. This formal arrangement has occasioned its comparison by tourists to the rock of Gibraltar, and seen from the sea it certainly does present a warlike front. The new town stands upon the sands at the base of the rock, and though free from the smoky imputation which blackens the character of its elder brother, is scarcely safe from the attacks of Neptune, who is only kept at a respectful distance by the intervention of a few mounts of sand shifting with every storm. The beach is level, hard, and smooth; a great convenience to those whose health requires the stimulus of cold immersion, and an agreeable ride for the fashionable visiters who come hither in the summer season for sociability and recreation. The panorama around the estuary is inconceivably grand; the river, expanding into a bay, is embraced by mountains assuming all forms as they aspire above each other, shooting into denuded cliffs that hang over the water, or clothed with forests retiring into deep glens, whither fancy alone can pursue them.