Nowhere in its whole course is the North Tyne more striking in its actual bed than for the last mile before its confluence at Hexham, when its amber peat-stained waters fret amid a huge litter of limestone crags and ledges between the woods of Warden. It is curious, too, in time of spate to watch the powerful rivers rushing into one another's arms at the meeting of the waters; the one a yellowy-brown, the other a rich mahogany-black, as if no fallowed field or muddy lane had cast a stain upon it. A few miles up, in a stretch of park land on the very banks of the river, is Chesters, one of the principal Roman stations on the wall, which last here leaped the stream. Much skilful excavation has been done, laying bare the foundations and the lower walls of a large cavalry station, for all to see on the day of the week when those in possession, who have performed this admirable labour of years, admit the public. Here too, in a normal state of the water, you can yet see the remains of the Roman bridge which have defied the floods of Tyne for all these centuries. As one travels up the river, pursuing its narrow and for a time much-wooded vale, places of ancient fame or the scene of Border ballads hold one at every mile. Houghton Castle, long restored and inhabited, but still plain and grim, with much of the old fabric and its ten-foot walls, stands proudly upon a woody steep above the wide churning stream. Built in the thirteenth century by a Swinburne when North Tynedale was Scottish ground, it was occupied by his descendants through much of the turbulent period; for when the Border was shifted it became the nearest castle of importance to the Scottish raiding valleys, and many a moss-trooper has languished in its dungeons. A space farther up on the other bank is Chipchase Castle, the ancient seat of the Herons, where is still the original peel-tower, bearing a roof of six-foot flagstones with battlements corbelled and machicolated, circular corner towers, and the wooden fragments of a portcullis still embedded in its pointed archway. Annexed to this is a beautiful Late Tudor house of 1621, the first, no doubt, of its kind on this wild frontier. In the sixteenth century Chipchase was the headquarters of a corps of light horsemen, stationed here for the policing of Tynedale under the command of its "Keeper," who was generally a Swinburne or a Heron, subject in turn to the orders of the Warden of the Middle March, very often a Dacre. But the little village of Wark, where a modern bridge crosses the river, still some 50 or 60 yards wide, was in older times than this the capital of North Tynedale. Here law was administered and the visiting Scottish judges sat, before the embittered Border feuds began to make any law other than that of the sword almost a farce. Above Wark the valley grows wilder and more open, the river losing nothing, however, of its size, and still proceeding, in a succession of rapids and splendid salmon pools, between woods of birch and larch and ash. Dark burns come splashing down anon from the high moors through bosky denes, and an innocent-looking stream, not much bigger, pipes quietly in on the east bank, and gives the name of Reedsmouth to a trifling hamlet. This is the far-famed Rede, and this the mouth of Redesdale, that dark and bloody ground, that inmost artery of Border feud. For over 20 miles the little river goes winding away amid the moors and sheep-farms of the Cheviots, with a village here and a hamlet there, till at the Reidseweir by Carter Fell, scene of a famous Border fight, it finds its source in the watershed and the Scottish Border. The main road that in a stretch of 50 miles climbs the Cheviots into Scotland now runs up Redesdale, and the frequent motor traffic along it seems something of a jarring note amid the solitude of the great hills and the wide sweeping moors. It is an old main highway nevertheless, and the world hurrying through it in flying fragments at intervals seems incongruous in method rather than in act; for Redesdale was not only a favourite pass for Border raiders, but for large Scottish and English armies. The valley forms a V with that of the North Tyne, both leading up to a pass over the spine of the Cheviots. Though the Rede carries, as always, the highway, the Tyne, with but a rough route for wheel traffic, has now a little railroad, which at long intervals awakes its echoes. Redesdale, like Tynedale, from its mouth to its source is a string of landmarks that tell of doughty deeds, of triumph and defeat, of valour and treachery.