These peaks were originally named Pleiades Peaks by Robert L. Wood, a reference to the seven daughters of Atlas in Greek mythology, however this name did not stick. Glenn Kelsey and Harold Pinsch climbed in this area in 1970 and are credited with the Valhallas name. In Norse mythology, Valhalla is a great hall located in Asgard, ruled over by the god Odin, who in Old English was known as Woden. The peak, Woden, may have originally been named Mount O'Neil by the 1890 Seattle Press Expedition in honor of Lt. Joseph O'Neil, who led an earlier 1885 exploration into the Olympic wilderness. The first ascent of Woden was made in 1966 by Ernie Labistida and Ivan Lundgren.