More Glacier pictures

Here are some more pictures from our Montana trip.

And, in case anyone is wondering, as I was, what exactly a glacier is, here's some info. Glaciers are made up of fallen snow that, over many years, compresses into large, thickened ice masses. Glaciers form when snow remains in one location long enough to transform into ice. What makes glaciers unique is their ability to move. Due to sheer mass, glaciers flow like very slow rivers. They can advance and retreat. The picture at the top is Jackson Glacier, which is the only glacier that can be seen from the Going To The Sun road in the National Park. It is estimated that all of the 20 or so remaining glaciers in the park will be gone by 2030.