Hölloch Cave References Hölloch Cave cave, Switzerland Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of EncyclopĂŠdia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: cave/ Geographic distribution of karst terrainThe Hölloch Cave, the worldâs third longest at 133 kilometres, is found in the Swiss Alps. Individual limestone massifs capped with karst plateaus and abounding with deep caves occur in the Austrian Alps. Read MoreThe Hölloch Cave, the worldâs third longest at 133 kilometres, is found in the Swiss Alps. Individual limestone massifs capped with karst plateaus and abounding with deep caves occur in the Austrian Alps. Read More