Rapid recession of glaciers often leads to masses of ice becoming detached from the snout and producing tunnels and caves, as here at Haut Glacier d’Arolla, Valais, Switzerland. MH |
Rapid recession of glaciers often leads to masses of ice becoming detached from the snout and producing tunnels and caves, as here at Haut Glacier d’Arolla, Valais, Switzerland. MH |