The whole island, exclusive of the snowfields, abounds in freshwater lakes and pools in the hills and lower ground.
AFTERGLOW, a broad high arch of whitish or rosy light appearing occasionally in the sky above the highest clouds in the hour of deepening twilight, or reflected from the high snowfields in mountain regions long after sunset.
Nor are there any snowfields to feed rivers, as in the other continents.
Beyond this point the Anglo-Russian Commission of 1895 demarcated a line to the snowfields and glaciers which overlook the Chinese border.
Along the Ruwenzori range are glaciers and snowfields nearly 15 m.
A district of considerable extent in the centre of the island is occupied by snowfields, whence glaciers descend east and west to the sea.
Farther north in Montana, in spite of a decrease of height, there are to-day a few small glaciers with snowfields of good size; and, here the effects of sculpture by the much larger Pleistocene glaciers are seen in forms of almost alpine strength.
The Cascade Range is in essence a maturely dissected highland, composed in part of upwarped Colombian lavas, in part of older rocks, and crowned with several dissected volcanoes, of which the chief are (beginning in the north) Mts Baker (Io,827 ft.), Rainier (14,363 ft.), Adams (12,470 ft.) and Hood (11,225 ft.); the first three in \Vashington, the last in northern Oregon- These bear snowfields and glaciers; while the dissected highlands, with ridges of very irregular arrangement, are everywhere sculptured in a fashion that strongly suggests the work of numerous local Pleistocene glaciers as an important supplement to preglacial erosion.
The northernmost part of the coast ranges, in Washington, is often given independent rank as the Olympic Range (Mt Olympus, 8150 ft.); it is a picturesque mountain group, bearing snowfields and glaciers, and suggestive of the dome-like uplift of a previously worn-down mass; but it is now so maturely dissected as to make the suggested origin uncertain.
The climatic effects of relief are seen directly in the ascent of the higher mountain ranges to altitudes where low temperatures prevail, thus preserving snow patches through the summer on the high summits (over 12,000 ft.) in the south, and maintaining snowfields and moderate-sized glaciers on the ranges in the north.
This at any rate is the action of the Burgutai stream during certain seasons of the year, so that the glaciers and snowfields of the Nicolas range may be regarded as the chief fountain-head of at least two of the upper tributaries of the Oxus, namely, the Aksu (or Murghab) and the Pamir river, and as contributing largely to a third, the Ab-i-Panja.
A part of the little Pamir is included in Afghan territory, but the boundary crosses this Pamir before the great bend northwards of the Aksu takes place, and, passing over a series of crags and untraversable mountain ridges, is lost on the Chinese frontier in the 66° Longitude East 68° of Greenwich 7e snowfields of Sarikol.
Long sweeps of grassy upland bestrewn with boulders lead from the stream beds up to the snowfields, yellow, grey or vivid green, according to the season and the measure of sunlight, fold upon fold in interminable succession, their bleak monotony being only relieved by the grace of flowers for a short space during the summer months.
Their hydrographical conditions proves that neither of the the two lakes, Victoria (13,400 ft.) or Chakmaktin (13,020 ft.), can justly be regarded as sources, both of them being derived from the same mighty system of glacial snowfields on the summit of the Nicolas range.
Here and there are large straggling snowfields, the largest being Glamu and Drangajokull,' on the culminating points of the plateau.
Is covered with snowfields and glaciers.
Some of these alluvial accumulations indicate a former greater extension of the snowfields that are now so restricted in the Spanish sierras.
The ridges rise by long, gentle slopes to flat summits, where often for many miles the sky-line is an almost straight crest, from which the rounded slopes of pure white snowfields descend towards the basins.
They consist of slightly rounded domes or billowy snowfields of vast thickness.
The glaciers which stream off from these snowfields are often of vast extent, e.g.
There is a great development of snowfields and glaciers, the passes are buried under snow, and the short summer is rainy.