This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
ETHBIB.Bildarchiv Hs GKB . de Palgletscher aufgenommen von Alp Grm von Adolphe Braun ETHBibliothek Zrich Bildarchiv ETHBibliothek Zrich Bildarchiv epics ethz ch Bildarchiv BildarchivHsGKB html Adolphe Braun PDold Palgletscher in Switzerland Adolphe Braun Bildarchiv der ETHBibliothek Zrich Outlet glaciers of Switzerland Retreat