Aerial overview: Rhonegletscher form the south in 1985: The glacier tongue still flows over the riegel near Bélvèdere (photo J. Alean).
Aerial photo from a lower altitude, 28. August 2007: The tongue has now retreated from the riegel (visible on the lower right), and two major glacial lakes have developped (photo Bernhard Edmaier).
Enlarged section from the previous photo showing some icbergs, the beginning of the river Rhone and a temporary bridge giving tourists access to an ice cave (upper right; photo Bernhard Edmaier).
Another section in which the low evening sun highlights lake sediments re-worked by various temporary advance of the glacier tongue (lower left; photo Bernhard Edmaier).