434 STEPHEN R. CAPPS 
That one which gives rise to the main fork of the stream is 17 miles 
long and in places is two miles wide (Fig. 9). The lower end is 
moraine covered for several miles and gives evidence that it is 
probably in a state of retreat. East Fork of Delta Creek has its 
source in a glacier which descends from the slopes of Mount Hayes. 
While most of its waters are tributary to Delta Creek, a small 
lobe drains northwest to Little Delta River. 
LITTLE DELTA RIVER DRAINAGE 
East Fork of Little Delta River rises in the third large north- 
ward-flowing glacier from the mountains about Mount Hayes and 
Cathedral Mountain (Fig. 10). Some of its headward tributaries 
r— 
Frc. 9.—Delta Creek Glacier. The high peak at the right is Mount Hayes. Ig10 
lie in unexplored territory, but the glacier is known to be more than 
15 miles long and its main lobe is over 13 miles wide. The foot 
is moraine covered and ends in a thin edge. Outstanding moraine 
ridges show the glacier to be retreating. 
OTHER GLACIERS IN UNSURVEYED AREAS 
To the west of the East Fork of Little Delta River there are a 
number of streams, notably West Fork of Little Delta River, 
Wood River, Yanert Fork of Nenana River, and Toklat River 
which head in unsurveyed areas, but which are known from the 
character of their waters and from the reports of prospectors to head 
in glaciers. In most of this region the mountains are lower than to 
either the east or the west, and it is probable that the glaciers are 
of comparatively small size. 
