Since 1975 Petzl's famous line drawings have enabled thousands of mountaineers and climbers to improve their techniques on rock, snow and ice.

In order to share Petzl's tips even more widely with the community, the interactive information website, www.camptocamp.org, now has them available in its online technical encyclopedia. 

The collaborative website provides free information on mountain trails and climbing route conditions.

Visit: http://www.camptocamp.org/articles/713233/en/petzl-technical-documentations