40 



STEPHEN R. CAP PS 



About one mile above Nikonda Creek a rock island or nunatak 

 stands up through the ice. Its surface is covered with loose material, 

 but is bare of vegetation. 



The terminal moraine of this glacier covers the valley floor for 

 about two miles below the ice-edge, except for narrow valleys on the 

 east and west through which the waters of the melting glacier escape 

 to the north. The moraine surface is of very irregular topography, 



Fig. 2. — The Nabesna Glacier. 



and consists of a succession of hummocks and kettles, many of 

 which contain lakelets. No well-established drainage lines were 

 observed. 



The extent of the terminal moraine shows that the glacier is at 

 present retreating. It has been deposited so recently that over most 

 of it no vegetation has as yet obtained a foothold. Along the northern 

 edge there is a low growth of bushes, but no trees of size. 



Small glaciers in the Nabesna drainage. — ^There are a number of 

 small glaciers to be found at the heads of tributaries of the Nabesna, 

 which themselves do not connect with the main glacier, or extend 



