Seasonal Migration of Snow Cover on Mt. Ranier
http://www.classzone.com/books/earth_science/terc/content/visualizations/es1501/es1501page01.cfm?chapter_no=visualization

TERC Jennifer Loomis, Exploring Earth at ClassZone.com


This Flash animation shows the seasonal fluctuation of the snow line on Mount Rainier, Washington. A compilation of monthly images show the approximate amount of snow cover on the mountain for a full year and the image with the least amount of snow shows the position of the snow line. The animation can be paused and rewound to emphasize important points.

This resource is referenced here: