COLUMBIA GLACIER 
77 
ice front (fig. 39). A second push-moraine, less massive 
than the first, lay within it, being 160 feet from it at the 
water margin 
and elsewhere 
nearer to it 
than to the ice. 
On the island 
between the 
two ice cliffs 
there were 
also two push- 
moraines of 
recent date, 
the nearer being about 100 feet from the ice front, the 
farther from 300 to 500 feet. The latter was associated 
with overthrown forest trees, and included with its rocky 
FIG. 39. PUSH-MORAINE, WEST SHORE OF COLUMBIA BAY. 
FIG. 4O. FLUTED MORAINE AT EDGE OF COLUMBIA GLACIER. 
Photographed in June, 1899. 
debris not only tree trunks and branches but folds of 
peaty soil. The tract between the nearer push-mo¬ 
raine and the ice was in places occupied by an old mo- 
