ice front

the forward section or seaward edge of an ice shelf.

Origin of ice front

First recorded in 1855–60

Large masses are also always falling down from the ice-front.

Geology |James Geikie
This is not the case of a mere temporary recession of the ice-front.

Fragments of Earth Lore |James Geikie
In the oscillations of the ice-front marking the final retreat of the Alpine glaciers there were three epochs of advance.

The New Stone Age in Northern Europe |John M. Tyler
The 'Aurora' retreated to the open sea, and headed to the west in search of a break in the ice-front.

The Home of the Blizzard |Douglas Mawson

No mere temporary retreat and re-advance of the ice-front can account for these phenomena.

Fragments of Earth Lore |James Geikie