Sitemap - 2021 - Mechanical Advantage: Tools for the Wild Vertical
"Grade VI" and 1930s climbing histories
Representation of Early Women Alpinists (notesV2)
Tita Piaz-Guide and Rigging Expert (Piaz PartC)
Tita Piaz-Speed Climber and Rope Acrobat (Piaz PartB)
D4 vs A5 Frame Engineering Analysis
Tita Piaz-Alpinista Acrobatico (Piaz PartA)
Climbing Pitons Early Evolution-part 1e--Fiechtlhaken Design.
Climbing Pitons Early Evolution--part 1d--Inline pitons and the rise of steel
Climbing Pitons Early Evolution--part 1c--Mauerhaken
D4 Delta2p Evolution (2020 John Middendorf portaledge design)
Climbing Pitons Early Evolution--part 1b--Alpine ways and artificial aids.
Climbing Pitons Early Evolution--part 1a--Origin of the term "piton", and Marmolada
Mizzi Langer -- first advertised rock climbing pitons (Mauerhaken)
Rope Technology in the 19th century
American Trail Builders, 1800's
In the Beginning: Subtle Means and Engines
May 2021 D4 BigWallGear Update--winding down