Situation 2021

View across the lake from SE. Most of the calving took place roughly in the middle of the photo.

A group of hikers waits for the next calving event.

Minor calving; the large boulder has recently fallen into the lake. This boulder was still lying on the glacier surface in 2018.

After a somewhat bigger calving event, a wave of considerable height spreads on the lake surface.

Drone panorama from West. In the left background is Urnerboden.

Drone panorama from WSW. Note concentric pattern of crevasses indicating subsidence of glacier surface on the right.

Drone panorama from East. Calving has caused a wave which, in turn has stirred up sediments along the shore.

Drone panorama from ENE. A dark strip along the shoreline was caused by waves after calving. Left: series of lateral moraines, the uppermost one from the Little Ice Age. Foreground: meltwater channels, formed by run-off when the glacier filled the lake basin.

Drone panorama from NE. The lake usually drains through the channel that starts at the right-hand side of the lake, and is oriented towards the drone, However, at the time of the visit, the lake level was too low for any surface drainage to occur.

Drone panorama from NNE. Below centre left is a new bridge over the channel draining the lake.

Drone panorama from a greater distance NNE of the lake. The moraine complex from the Little Ice Age covers almost the entire width of the image.

Drone panorama of Chlus, a prominent glacial trough at the southwestern end of Urnerboden.

Calving front from ENE.

Calving front from WNW.