Panoramic photo and Siegfriedkarte from 1877

Panoramic photo and Siegfriedkarte from 1877
Panorama view of Lej da Vadret, a more than 1.5 kilometres long glacial lake which formed in the 20th century due to the recession of Vadret da Roseg which, for now, still terminates in the lake. On the left Vadret da Tschierva, whose lateral moraine dams the lake. In the background, from left to right: Piz Tschierva (3546m), Piz Morteratsch (3751m), Piz Pernina (4048.6m), Piz Scerscen (3971m), Piz Roseg (3937m, white summit pyramid), Piz Sella (3506m, flat, white ridge), La Sella (3584 and 3564m, twin peaks) and Piz Glüschaint (3594m).
Panoramic photo and Siegfriedkarte from 1877
Unedited section from sheet Nr. 521, Bernina; the grid width is 3 kilometres. Note hand-written label "CAS" upper left from the map centre marking an alpine club hut which no longer exists.
Panoramic photo and Siegfriedkarte from 1877
Edited version of the same map: Contours of Vadret da Roseg and Vadret da Tschierva are highlighted in orange, the tongue positions of 2003 are superimposed in red, the new glacial in turquoise.
Panorama photo Jürg Alean, Noblex rotation camera on roll film, horizontal field of view approximately 146 degrees.