Answer :

Piedmont glaciers form when one or more valley glaciers merge and are no longer confined. This is further explained below.

What are Piedmont glaciers?

In most cases, a glacier will form at the base of a mountain when the terminal glaciers of a number of different valleys mix together.

A glacier that flows downhill along valley walls and frequently originates in a cirque at the valley's head or on a highland ice cap

In conclusion, Piedmont glaciers are formed as a consequence of the merger of two or more valley glaciers, which subsequently cause the glaciers to break out of their bounds and form new territories.

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