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Q&A What climbs at Tahquitz were the original definitions of YDS class 5 grades?

From what I understand of the history, Yosemite Decimal System (YDS) grades came about when class 5 in the preexisting system was subdivided into 5.0 through 5.9. This was done by Chuck Wilts, Roya...

1 answer  ·  posted 9y ago by Ben Crowell‭  ·  last activity 7y ago by System‭

Question climbing rock-climbing history