Mechanical Advantage: Tools for the Wild Vertical

Mechanical Advantage: Tools for the Wild Vertical

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Mechanical Advantage: Tools for the Wild Vertical
Mechanical Advantage: Tools for the Wild Vertical
"Grade VI" and 1930s climbing histories
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"Grade VI" and 1930s climbing histories

John Middendorf
Dec 4, 2021
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Mechanical Advantage: Tools for the Wild Vertical
Mechanical Advantage: Tools for the Wild Vertical
"Grade VI" and 1930s climbing histories
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mechanical advantage footnote

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