Then, a huge snowstorm hit on 4/16 and 4/17, dropping 4' of snow on our area. The den was completely buried, and the bears stayed under the snow for four days. You might remember this photo of Shyla trying to gallop in the snow on 4/17.
Finally, on 4/21, the cubs dug their way to the surface of the snow. It was amazing to see how much coordination they'd gained in those days under the snow. After re-emerging, they could pull themselves up onto higher trees and even play with each other!
Here's the video. It is available here or at Youtube.
I hope that you enjoy the footage as much as I did. I had to pare it way down to make it a manageable length for you!