In the valleys there are usually about two snows a year and these quickly disappear; but on the mountain peaks and in the canyons the snow accumulates to great depths and forms a steady source of water-supply for the rivers.
The principal peaks of the Bolivian Andes and its prolongation from south to north, are Famatina, in the centre of Argentina, (20,340 ft.), Languna Blanca (18,307), Diamante (18,045), Cachi (20,000), Granadas, Lipez (19,680), Guadalupe (18,910), Chorolque (18,480), Cuzco (17,930), Enriaca (18,716), Junari (16,200), Michiga (17,410), Quimza-Cruz (18,280), Illimani (21,190) and Sorata (21,490).
Fertile plain, which on the southern side soon swells into pleasant slopes backed by the jagged peaks of the Umbrian Apennines.
Above sea-level; the highest point on the Jauf-Hail route is at Falk Alam, the rocky peaks of which rise 200 or 300 ft.
This constitutes what is called in East Siberia the taiga: it consists of Alpine separate chains of mountains whose peaks rise 4800 to accompany the eastern edge of.
The highest points in the state are residual masses of relatively resistant rock rising above the erosion surface; such are: Rib Hill (1940 ft.) in Marathon county, in the north-central part, and some of the peaks of the Penokee Range in the N.
The average depth varies from 1500 to 2500 fathoms, and from this level innumerable volcanic ridges and peaks rise almost or quite to the surface, their summits for the most part occupied by atolls and reefs of coral formation, while interspersed with these are depressions, mostly of small area, among which the deepest soundings recorded have been obtained.
And not only do the snow-clad ranges and the ice-panoplied peaks which tower up above them surpass the loftiest summits of the Alps in altitude; they also in many cases excel them in boldness and picturesqueness of outline, and equal the most difficult of them in steepness and relative inaccessibility.
The principal peaks are the Reiftrager (4430 ft.), the Hohe Rad (4968 ft.), the Great Sturmhaube (4862 ft.), the Little Sturmhaube (4646 ft.), and, near the east extremity, the Schneekoppe or Riesenkoppe (5266 ft.), the loftiest mountain in northern or central Germany.
Chief amongst them are the glaciers which have formed on the southern slopes of the Murtagh mountains below the group of gigantic peaks dominated by Mount Godwin-Austen (28,250 ft.