Mt. Dade, North Pillar, Previously Unreported. Paul Linaweaver, Ron McTarque and I climbed the North Pillar (IV 5.10, 1,200') of Mt. Dade in September, 1995. The route ascends directly up the north pillar. It is unclear if ours was the first ascent, as this is a very prominent feature in one of the Sierra’s most-visited valleys.