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. 



