Beta is a climbing term that designates information about how to ascend a climbing route, and the specific climbing techniques required—and how to apply them—to overcome the key challenges encountered. Traditionally sourced in climbing guidebooks, online databases and apps now provide detailed climbing beta. The term is attributed to Texan climber Jack Mileski.
Competition bouldering climbers at the IFSC World Cup 2017 pre-inspecting the boulder problems to figure out the beta.
A Betamax cassette
Climbers standing on the top of 'Boot Flake' on El Capitan, preparing to do the "King Swing" pendelum
Glossary of climbing terms
Glossary of climbing terms relates to rock climbing, mountaineering, and to ice climbing.
Abalakov thread
Ice axe with adze
Ascenders
Australian rappel