Aerial photos of Piz Palü (3899m) from similar positions in 1934 and 2021. Glacier recession is somewhat less on the high, north-facing flank of Piz Palü than at lower elevations. However, snowcover on the rock outcrops is considerably reduced (1934: ETH-Bibliothek ZH, Bildarchiv/Stiftung Luftbild Schweiz, Mittelholzer, LBS_MH01-007844, PD, 2021: Alean).