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glaciers still linger, to elevations far above the surfaces 

 of the present glaciers. Tributary valleys hang above the 

 level of Yakutat bay, Disenchantment bay, Russell fiord, 

 and Nunatak fiord; secondary tributaries to these lateral 

 valleys hang above them; and hanging valleys, often with 

 cascading glaciers, lie above the level of the surfaces of 

 all the larger existing glaciers. Many of these glaciers 

 head in cirques, except in the case of the through glaciers. 



Excursion C 8. 



Photograph of Nunatak glacier from crest of Nunatak, showing retreat from 1905 



to 1909. and advance from 1909 to 1910. Subsequently there has been a 



retreat of J mile. 



A second evidence of former expansion is the presence 

 of outwash gravels along the shores of the fiord even as 

 far as the mouth of Yakutat bay, in places where glaciers 

 are no longer present or depositing. 



The third proof is the distribution of transported rock 

 fragments and the development of morainic terraces at 

 elevations high above the level of the inlet, and high above 

 the surfaces of such glaciers as are present. Such deposits 

 occur all along the shores of the inlet, to the west of 

 Yakutat bay above the eastern margin of Malaspina 



34883—10 



