Deep within Mer de Glace lies a remarkable ice cave carved into the glacier each year. Reached after a scenic mountain train ...

From the shoreline, Mendenhall Glacier looks like one of Alaska's many spectacular frozen landscapes. Stretching across the Mendenhall Valley near Juneau, its towering walls of ice attract hundreds of ...

Along the Wisconsin shore of Lake Superior, the cliffs of Apostle Islands National Lakeshore contain arches, chambers and passageways carved into sandstone. Dur ...

Ice caves host a range of cryogenic phenomena driven by the interplay of ambient air temperature, subterranean hydrology and karst geometry. Seasonal and perennial ice accumulations form through the ...