The river Severn, in its course from Shrewsbury to Worcester, passes for several miles down a deep and rugged ravine, within or near to which lie the populous districts of Coalbrook Dale, Iron Bridge, Coal Port, and Broseley, early seats of the iron manufacture, and evidences of the wealth, though scarcely in harmony with the natural beauty, of the country. The ravine commences a little below the ivy-covered ruins of Buildwas Abbey, and terminates twenty to twenty-five miles lower down, about Bewdley and Stourbridge, where it opens out into a valley of a soft and smiling character. About half-way down, between Pendlestone rock and the incoming of the Worf, the Severn receives upon its right bank the waters from a short but deep and broad valley, which descends obliquely from the north-west, and between which and the main valley intervenes the point of a steep and narrow ridge of rock, rising about 200 feet above the river, and upon the nearly level summit of which is placed the town and what remains of the Castle of Bridgenorth. The rock is more lofty, and the position far more striking, than that of Pontefract Castle, the defences of which were also in a great degree natural, and in these respects Bridgenorth may challenge comparison with Coucy, which it also resembles in the relation of the castle to the town. In both places the castle lay contiguous to the town, and their connected defences formed the common _enceinte_, while the castle had besides a ditch proper to itself. [Illustration: BRIDGENORTH CASTLE.]