The Platigliole Glacier was a glacier in the Northern Italian Alps near to the border with Switzerland. It marked the border between Italian Lombardy and the Austro-Hungarian Empire until the First World War, when it was the scene of mountain warfare, during the White War. After the war the Treaty of Saint-Germain-en-Laye granted the glacier to Italy. The glacier fragmented later in the 20th century and by 2021 had largely melted, releasing artefacts from the war.