Glaciers carved out a deep valley in Austria's Salzach Valley, revealing the underlying bedrock. By studying seismic data and drillings, researchers mapped the valley's shape and sediment layers. They found two areas where the bedrock eroded more, likely due to different rock types and glacier movements. Sediments filled the valley quickly, with fan-shaped deposits from streams. This filling affected the valley's shape and how streams cut into it. The valley's history during past ice ages is still unclear and needs more research. This study provides a detailed model of the valley's bedrock, one of the best for such a large glacial valley.