An Expedition to Mount St. Elias, AlaskaRussell, Israel C. (Cook)
History
An Expedition to Mount St. Elias, Alaska
Russell, Israel C. (Cook)
Alaska -- Description and travel; Saint Elias, Mount (Alaska and Yukon)
spurs between the Hitchcock range and Yakutat bay; but space will not
permit me to follow this subject further.
Turning from the mountains, we direct our eyes seaward; but it is a
sea of ice that meets our view and not the blue Pacific. Far as the
eye can reach toward the west, toward the south, and toward the
southeast there is nothing in view but a vast plateau of ice or barren
débris fields resting on ice and concealing it from view. This is the
Malaspina glacier.
On the border of the ice, just below the cliffs on which we {119}
stand, there is a belt of débris perhaps five miles in breadth, which
almost completely conceals the ice beneath. Portions of this moraine
are covered by vegetation, and in places it is brilliant with flowers.
The vegetation is most abundant on the nearer border and fades away
toward the center of the glacier. Its distant border, adjacent to the
white ice-field beyond, is {120} absolutely bare and desolate. An
attempt has been made to reproduce this scene in the picture forming
plate 16. The drawing is from a photograph and shows the barren débris
field stretching away towards the southwest. The extreme southern end
of the Hitchcock range appears at the right. In the distance is the
white ice of the central part of the Malaspina glacier. Far beyond,
faintly outlined against the sky, are the snow-covered hills west of
Icy bay. The flowers in the foreground are growing on the crest of the
steep bluff bordering Blossom island on the south.
[Illustration: PLATE 16: MALASPINA GLACIER, FROM BLOSSOM ISLAND.]
On the moraine-covered portion, especially where plants have taken
root, there are hundreds, perhaps thousands, of lakelets occupying
kettle-shaped depressions. A view of one of these interesting
reservoirs in the ice is given in figure 2. If we should go down to
the glacier and examine such a lakelet near at hand, we should find
that the cliffs of ice surrounding them are usually unsymmetrical,
being especially steep and rugged on one side and low or perhaps
wanting entirely on the other. But there is no regularity in this
respect; the steep slopes may face in any direction. On bright days
the encircling walls are always dripping with water produced by the
melting of the ice; little rills are constantly flowing down their
sides and plunging in miniature cataracts into the lake below; the
stones at the top of the ice-cliffs, belonging to the general sheet of
débris covering the glacier, are continually being undermined and
precipitated into the water. A curious fact in reference to the walls
of the lakelets is that the melting of the ice below the surface is
more rapid than above, where it is exposed to the direct rays of the
sun. As a result the depressions have the form of an hour-glass, as
indicated in the accompanying section.
[Illustration: FIGURE 2--_View of a glacial Lakelet_ (_drawn from a
Photograph_).]
[Illustration: FIGURE 3--_Section of a glacial lakelet_.]
Public-domain text, read in full here on John Shaqi.
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