Lakeside homes in northern Minnesota were damaged over the weekend by what's being called an "ice wave."
Strong winds pushed huge sheets of ice from Lake Mille Lacs ashore.
Residents say the sound of the ice coming toward their homes was like a train crunching along the track, with some observers estimating it moving as fast as two feet per minute.
The glacier-like ice wave collided with homes and fences, plowing through glass doors and windows.
In some areas, the ice piled up as high as three feet.