Welcome to Bigwalls.net, a repository of all things bigwall climbing.
For the old Bigwalls.net (around since mid 1990s), which is old but still has some useful info, click here (opens in new window).
BIG WALL RESEARCH AND HISTORY--sign up for Mechanical Advantage series at http://bigwallgear.com
Volume 1 (European Climbing Tools and Techniques to 1930s Available as PDF (450mb)
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Note: Bigwalls.com now goes to Ryan's big wall how to video pages.