Kropfsberg Castle (German: Burg Kropfsberg) is a castle in Tyrol, Austria that stands at 526 metres (1,726 ft) above sea level. Kropfsberg is a ruined hill castle in the municipality of Reith im Alpbachtal on a towering ridge in the Inn Valley above the village of St. Gertraudi. It was the setting for a ghost story by Ralph Adams Cram.