This cover from Austria features a single stamp issued in 2023 celebrating the "Pionierkreuz". Pionierkreuz is a shrine in Obertraun, Gmunden District, Upper Austria and has an elevation of 1,398 metres. Pionierkreuz is situated nearby to Dachstein Mammoth Cave and the scenic viewpoint 5 Fingers. It is also part of the
Salzkammergut Cultural Landscape. UNESCO designated
Hallstatt–Dachstein/Salzkammergut Cultural Landscape (Kulturlandschaft Hallstatt–Dachstein/Salzkammergut) a World Heritage Site in 1997, with the description: "Human activity in the magnificent natural landscape of the Salzkammergut began in prehistoric times, with the salt deposits being exploited as early as the 2nd millennium B.C. This resource formed the basis of the area's prosperity up to the middle of the 20th century, a prosperity that is reflected in the fine architecture of the town of Hallstatt."
