Or when the North his fleecy store
Drove thro' the sky;
I saw grim Nature's visage hoar
Strike thy young eye.'[42]
II. The Uplands of the British Isles consist of undulating plains or plateaux which lie from 1000 to more than 2000 feet above the sea. Seen from a distance, they look like ranges of hill or mountain, but without that variety of peak and crest which a true mountain outline would present. Though they may rise steeply out of the lower grounds, we have only to climb to their summit to find ourselves at the edge of a wide rolling platform, which may stretch for leagues without ever rising into any sharp prominence, or departing from the same monotony of moorland. Yet if we attempt to cross this seemingly continuous tableland, we find our progress barred by many valleys which, deep sunk beneath the general level, divide the plateau into separate blocks or ridges.
The surface of these uplands is for the most part treeless and even bushless. Where not covered with peat-moss, it is clothed with bent or with heather, kept short and green by periodical burning in the springtime. Herds of cattle and flocks of sheep wander over the pastures, but, save the stone fences, there is little other visible trace of human occupation. It is in the little hollows that lead down into the main valleys, and in these valleys themselves, that trees make their appearance, first in scattered saplings of birch, alder or mountain-ash, and then in thicker copsewoods or in artificial plantations of fir and larch. In these sheltered depressions, the farms and villages of the region have been planted, and cultivation has been slowly pushed upward on the slopes of the fells. Thus the larger part of the area of the uplands is uninhabited, the population being restricted to the more or less sheltered 'hopes,' hollows, dales, and valleys.
This type of scenery presents many local varieties, according to the geological structure of the ground. Where the rocks have been but little disturbed, the sides of the valleys display a succession of parallel bars of stone with intervening grassy slopes, such as may be seen among the moors of the East Riding, or in the dales of the Pennine Chain. Where, on the other hand, the rocks have been much compressed and pushed over each other by powerful movements of the terrestrial crust, their erosion has given rise to no regular topography, but they decay into rounded forms covered with heath and herbage, or breaking here and there into rocky scarps, as in Wales and southern Scotland.
Of the British uplands, the only district that claims notice here in connection with our literature is that of the wide Border country of England and Scotland. It stretches through the moorlands of Northumberland and Cumberland into the range of the Cheviots on the one hand, and on the other into the great tract of high ground, which extends through the Lammermuir and other groups of fells from the North Sea to the Solway Firth. For many centuries this region has been pre-eminently pastoral. The natural forest, which in old times clothed much of its surface, has almost wholly disappeared before modern agriculture, and the plough has in successive generations crept higher up the slopes from the meadows of the dales. But there can be little doubt that though roads and railways have done much to open up these solitudes, the natural features remain essentially unchanged.
It was among these uplands that the Border ballads had their birth. We may therefore pause for a few moments to inquire what trace may still be discernible of the influence of the landscape upon the tales of war and love, of feud and raid and rescue, which have made that Border-land famous in our literature.
At the outset it is desirable to realise the all-important character of the valleys in the human history of the uplands. From time immemorial, these strips of more sheltered and cultivable ground, lying much below the general level of the moorlands, have been to a large extent cut off from each other by high tracts of fell and peat-moss. Each of them took its name from the stream which, rising far up among the moors, and gathering tributary rivulets from glens on either side, winds down the strip of haugh along the valley-bottom. For generations past the people have looked on their native stream with an affectionate regard.[43] It has been the bond of union that has linked the natives of each dale in one family or brotherhood. The valley itself may vary its scenery as it passes across different parts of the upland, here narrowing into a glen, there widening into a strath; its slopes may change their aspect, now clothed in bent or purple heather, now waving with bracken or birken copsewood, now striped with fields of tillage, but the clear river that dashes merrily onward through these diversities of scene unites them all into one continuous dale.