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Avalanche Near Lake Louise Buries Icefield Parkway Under Massive Wall Of Snow

Crews weren't expecting this!

You know what they say about the best-laid plans...

A so-called "controlled" avalanche in Alberta ended up being a bit bigger than crews expected — so large, in fact, that it completely buried the highway below, making it temporarily impassable.

Control crews were working near Lake Louise Thursday, mitigating the high avalanche risk in the area, when a triggered slide on Mount Hector brought down way more snow and ice than intended, said Parks Canada in a statement.

The snow spilled onto the Icefields Parkway below, creating a massive bank more than 100 metres long and 15 meters deep.

Highway 93 between the Trans-Canada and Highway 11 has been closed until further notice.

An employee of the Sunwapta Falls Rocky Mountain Lodge posted a dramatic photo of the snow wall to Facebook with the caption "Beautiful Mother Nature is also extremely powerful!"

You can say that again.

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