A few miles beyond Bolton the hills begin to rise with dignity. Here we find far-famed and far-seen Rivington Pike, conspicuous, like Ashurst, through ascending almost immediately out of the plain. "Pike" is in Lancashire, and in parts of the country closely adjacent, the equivalent of "peak," the highest point of a hilly neighbourhood, though by no means implying an exactly conical or pyramidal figure, and very generally no more than considerable elevation, as in the case of the "Peak of Derbyshire." Rivington well deserves its name, presenting from many points of view one of those beautiful, evenly swelling, and gently rounded eminences which the ancient Greeks were accustomed to call [Greek: titthoi] and [Greek: mastoi], as in the case of the classic mound at Samos which Callimachus connects so elegantly with the name of the lady Parthenia. There are spots, however, where the mamelon disappears. From all parts of the summit the prospect is delightful. Under our feet, unrolled like a carpet, is a verdant flat which stretches unbrokenly to the sea-margin, twenty miles distant, declared, nevertheless, by a soft, sweet gleam of silver or molten gold, according to the position of the sun in the heavens. The estuary of the Ribble, if the tide be in, renews that lovely shining; and beyond, in the remote distance, if the atmosphere be fairly clear, say fifty or sixty miles away, may be discerned the grand mountains that cast their shadows into Coniston. Working Lancashire, though it has lakes of its own, has made others! From the summit of Rivington we now look down upon half a dozen immense reservoirs, so located that to believe them the work of man is scarcely possible. Fed by the inflow of several little streams, and no pains taken to enforce straight margins, except when necessary, these ample waters exemplify in the best manner how art and science are able at times to recompense Nature-- "Leaving that beautiful which always was, And making that which was not." After heavy and continuous rain, the overflow gives rise to musical waterfalls. Up in the glen called Deanwood there is also a natural and nearly permanent cascade.[35] [35] These vast reservoirs belong to the Liverpool Waterworks, which first used them in January 1857. The surface, when they are full, is 500 acres. Another great sheet of water, a mile in length, for local service, occurs at Entwistle, near Turton.