Most of the Alpine groups lying within Italy and between the main chain and {192} the plains do not exceed the Apennines in height, and only a few amongst them are covered with perennial snow. But the prospects which may be enjoyed from them are all the more charming for this reason, for we find ourselves between two zones, with cultivated valleys, towns, and villages at our feet, and a panorama of bare and snowy summits bounding the view to the north. Several of these mountains deservedly attract large numbers of tourists. Favourites amongst them are the hills rising above the blue lakes of Lombardy, such as the Motterone on Lago Maggiore, the pyramidal Generoso rising in the midst of verdant fields on the Lake of Lugano, the superb hills between the two arms of the Lake of Como and the fertile plains of the Brianza, and Monte Baldo, advancing its buttresses like lions’ claws into the waters of the Lake of Garda. The mountains of the Val Tellina, or the Orobia range, to the south of the valley of the Upper Adda, being remote from towns and customary highways, are less frequently visited than they deserve. Standing at their foot, we may almost fancy being in the Pyrenees. As to the dolomites, on the frontiers of Venetia and the Tyrol, they are unique. Their fantastically shaped rocks, delicately tinted with pink and other colours, contrast marvellously with the green of beeches and firs, or the blue waters of the lakes. Richthofen and others look upon these isolated mountain masses as ancient coral islands, or _atolls_, upheaved to a height varying between 6,500 and 10,400 feet; and, whatever their geological origin may be, they certainly contribute much towards the beauty of the Alpine regions. [Illustration: Fig. 53.—THE PLAIN OF DÉBRIS BETWEEN THE ALPS AND THE APENNINES. According to Zollikofer.]