langcliffe
Well-known member
The Gouffre Jean-Bernard is a cave that will be familiar by repute with many of the older generation of forum users. It is a remote Alpine cave situated about 60 km north-east of Annecy. Currently 1,612 m deep, it held the world depth record for almost 20 years and is still the seventh deepest in the world. I have recently been helping the French with a Wikipedia article on the system. The available survey was superb, but a PDF file and difficult to use. I therefore implemented a Deep Zoom version for both the plan and cross-section to help me get my brain round the system. I have now been given the go-ahead to make these versions generally available for those that may be interested.