Patricia Henschen:
Glacial Deposits
Patricia Henschen:
Athabasca Glacier
Patricia Henschen:
The Receding Athabasca Glacier
Patricia Henschen:
Athabasca Glacier
Patricia Henschen:
Ice Cave
Patricia Henschen:
Glacier View Inn
Patricia Henschen:
Hiking in an Icefield
Patricia Henschen:
Geology 101
Patricia Henschen:
Columbia Icefield
Patricia Henschen:
Columbia Icefield