The Malser Haide is an alluvial cone in the Vinschgau or Vinschger Oberland in South Tyrol that was created by sediment deposits from the Plawenner Bach . It covers an area of around 13.25 km² and extends from Glurns via Laatsch , Schleis , Mals , Burgeis , Ulten-Alsack , Plawenn to St. Valentin on the Haide . The Malser Haide is the largest alluvial cone in the Alps. The difference in altitude runs from 900 m (Glurns) to 1760 m (Plawenner Alm). The area is mainly used for agriculture due to its fertile soil. The large amount of loose material can probably be explained by the fact that in the upper reaches of the Plawenner Bach there is very brittle rock in unfavorable storage, so that the brook ate backwards very quickly after the Ice Age , while the brook, due to the small catchment area and thus the small transport capacity, the enormous Could not transport debris far away.