At first sight, Corsica presents the aspect of a chaos of mountains piled one on another, with their escarped sides rising from the sea to great elevations; but on a closer examination, and with the assistance of an accurate map, it is soon perceived that these mountains, apparently heaped up in wild confusion, are distinctly arranged in three principal directions,—from north-east to south-west, from north-west to south-east, and from north to south.
The point which forms the main link of the whole system lies high, near the snowy sources of the Golo. This elevated part of the island, with the districts immediately surrounding it,—an Alpine and forest region in which the principal rivers and streams take their rise,—this region so sublime in its vast solitudes, so poetic, so savagely wild, so picturesque,—may be called the Switzerland of Corsica.
From this central link two great chains, forming, so to speak, the backbone of the island, diverge in opposite directions. One section, tending to the south-east, traverses the centre of the island, where the Monte Rotondo and Monte d'Oro lift to the skies their ever snowy peaks, and terminates at the Monte Incudine. This high chain throws out its longest branches to the south-west, each of them forming at its extremity a lofty promontory washed by the Mediterranean, and the successive ridges inclosing delightful and fertile valleys.
The other section of the central chain describes a curved line to the north-north-east, as far as Monte Grosso; and, over the Bevinco, links itself with the system of Capo Corso by the offsets of Monte Antonio and San Leonardo, by which latter _col_ we crossed the ridge on the evening of our landing in Corsica. The spurs from this second chain take, in general, a north-west direction towards the sea. Less considerable than those connected with the first, they inclose narrower valleys, and form promontories less _saillants_, and of inferior elevation on the western coast.
The mountains of Capo Corso, extending in a chain nearly north and south, at a short distance from the east coast, form the third orographic division of the island; this chain, as observed in a former chapter, being cut by deep valleys of short extent, the channels of torrents discharging themselves into the Tuscan Sea.