Glacier Features: Crevasses

Za-da-Zan Glacier, Pennine Alps, Europe

Glacial grooves, East Sister Island, Lake Erie, Ontario, CanadaGlacial grooves, East Sister Island, Lake Erie, Ontario, Canada. The glacial grooves in this photo are roughly 385 million years old, and were created from the gouging action of ice flowing in the Lake Erie basin.recent freeze-thaw activity has produced significant frost heaves, or raised blocks, within and beside the glacial grooves. —Source: Natural Resources Canada. Photographer: R.N. McNeely. Copyright Terrain Sciences Division, Geological Survey of Canada.

Sperry Glacier, Glacier National Park, Montana, 1909Sperry Glacier, Glacier National Park, Montana, 1909.

Crevasses on Exit Glacier, AlaskaCrevasses on Exit Glacier, Alaska.

Stockje Glacier, Pennine Alps, EuropeStockje Glacier, Pennine Alps, Europe, 1894.