GLACIATION OF THE ALASKA RANGE 433 
shaped lobe, and is covered with morainal material upon which alder 
brush and other bushes have established themselves. Its melting 
waters emerge as a large stream from beneath the ice (Fig. 8). 
[ =] 
Fic. 8.—The emergence of a glacial stream from beneath Castner Glacier, 1910 
West of Delta River the mountains are higher and the glaciers of 
larger size. One large unnamed glacier emerges from the central 
part of the range and terminates on the banks of Delta River. 
It is known to have a length of more than 20 miles, and averages 
more than a mile in width. Its terminal end is heavily covered 
with débris, and terminal moraine deposits indicate that the glacier 
is retreating. 
DELTA CREEK DRAINAGE 
Delta Creek drains a part of the high group of mountains in 
the vicinity of Mount Hayes and heads in two important glaciers. 
