Depending on when it was formed, the size and speed it is moving it could be either an Avalanche or Glacier.
If it is an incredibly old, slow moving, large, ice mass it is likely a Glacier; however if it is a quickly moving, small (relatively), ice mass it is an Avalanche.
is a glacier.
an avalanche
An Alpine Glacier.
glacier?
Known as an ice floe
A glacier (slowly) An avalanche (fast)
a mass of snow, ice, and rocks falling rapidly down a mountain side
glacier
icebergs
Cap Polar ice cap Mountain ice cap
An Alpine Glacier.
kettle
Known as an ice floe
A glacier (slowly) An avalanche (fast)
a mass of snow, ice, and rocks falling rapidly down a mountain side
glacier
icebergs
kb
AVALANCHE!
It's an avalanche.
a mass of snow, ice, and rocks falling rapidly down a mountain side