The map overlay (GK500-LGM) shows the maximum extent of glaciation in Switzerland at the height of the last Ice Age around 24,000 years ago. By A. Bini, J.-F. Buoncristiani, S. Couterrand, D. Ellwanger, M. Felber, D. Florineth, H. R. Graf, O. Keller, M. Kelly, C. Schlüchter & P. Schoeneich, 2009, via swisstopo.
Further, the visualization uses a glacial DEM interpolated by Yvo Weidmann (thanks!) as well as a DEM for the surrounding areas from EBP.
This page was made with QGIS and Qgis2threejs plugin,
and uses the following library: