126 
ALASKA GLACIERS 
hills backward across the Brady-Taylor valley, we find 
that it passes among the highest peaks of another and 
higher upland, an upland lacking the broad summits of the 
Cape Spencer hills, but characterized instead by notable 
uniformity in the height of numerous acute summits. A 
suggestion of this character may be seen at the right 
in figure 61. 
Before leaving this view, note should be made of the 
fact that the peneplain of the Cape Spencer hills ends 
northward at the base of Fairweather Range. The range 
is distinct in physiographic type and in geologic history. 
The reader is now asked to turn back to figure 3, drawn 
to give a bird’s-eye view of Davidson Glacier, but show¬ 
ing also the east wall of Lynn Canal. The point of view 
is not quite so high as the crest of the opposite wall, but is 
high enough to show that the upland bounded by that wall 
has plateau characters. There are none of the smooth 
crest lines seen in figure 61, but angular peaks and crests 
standing close to the mural face combine with angular 
peaks and crests farther back to give an even sky-line. 
All the valleys visible are upland valleys, and it is not 
hard to believe that these have been carved out of an 
uplifted block, the plane of whose original flat top runs 
among or above the phalanx of sharp summits. 
This upland stands about 3,000 feet higher than the 
hills of Cape Spencer, and is eighty miles northeast of 
them. The intervening uplands are parted by two great 
fiords, Lynn Canal and Glacier Bay, and are considerably 
dissected in detail, but where most massive they have the 
plateau habit shown in figure 3; and they are intermediate 
in height between the plateaus at east and west. 
In figure 62 we have the view commanded from a peak 
like one of those against the sky in figure 3. The locality 
is twenty-five miles farther south, and we are looking 
eastward from a point about five miles east of Lynn Canal. 
