While avalanches are a concern in many areas of Western Wyoming during the winter months, Alaskans also have to deal with them, apparently on an even larger scale. Over the weekend a huge avalanche buried the only land route into Valdez, Alaska. Below is an aerial photo taken over the Richardson Highway.
Following is a Google Earth view of where Keystone Canyon is located with respect to Valdez.
The video from a helicopter flying across the avalanche provides a true perspective of the actual size of the avalanche.
Massive Avalanche and Ice Jam, Keystone Canyon AK
The avalanche footage was posted by YouTube user akiwiguy101 and shot near Valdez Alaska.
More detailed information about the avalanche can be seen at the Valdez Avalanche Center