It is traversed from west to east by the main chain of the Alps, which rises in various snow-covered summits, the more important being the Ortler (12,802 ft., the loftiest peak in Tirol and in the Eastern Alps generally), the Wildspitze (12,382 ft., Oetzthal group), the Zuckerhiitl (11,520 ft., Stubai group), the Hochfeiler (11, 559 ft., Zillerthal group), the Gross Venediger (12,008 ft.) and the Gross Glockner (12,461 ft., both in the Tauern range), while more to the south are the Dolomites, which culminate in the Marmolata (10,972 ft.).
Yet, as a matter of fact, several important mountain groups are situated on one or other side of the watershed of the Alps, and form almost independent ranges, being only connected with the main chain by a kind of peninsula: such are the Dauphine Alps, the Eastern and Western Graians, the entire Bernese Oberland, the Todi, Albula and Silvretta groups, the Ortler and Adamello ranges, and the Dolomites of south Tirol, not to speak of the lower Alps of the Vorarlberg, Bavaria and Salzburg.
Strictly speaking, we should follow the Reschen Scheideck route down the Adige valley, but as this would include in the Central Alps the Ortler and some other of the highest Tirolese summits, it is best (remembering the artificial character of the division) to draw a line from Nlals southwards either over the Umbrail Pass (the old historical pass) or the Stelvio (wellknown only since the carriage road was built over it in the first quarter of the 19th century) to the head of the Valtellina, and then over the Aprica Pass (as the Bergamasque Alps properly belong to the Central Alps) to the Oglio valley or the Val Camonica, and down that valley to the Lake of Iseo and Brescid.
Ortler, Oetzthal and Stubai Ranges (from the Reschen Scheideck and the Stelvio to the Brenner Pass, south of the Inn Valley, and north of the Tonale Pass).
Chief Peaks of the Ortler, Oetzthal and Stubai Ranges.