A multi-towered massif in the Lake O’Hara region of Yoho National Park, British Columbia, in the Bow Range. Wiwaxy Peak (2,706 m; prominence ~174 m) comprises East and West summits; the West Peak presents a more continuous profile and is the primary climbing objective. Neighbours include Mount Victoria (3,464 m) and Mount Huber (3,368 m). Wiwaxy Gap (2,532 m); the high col between the East Peak and Mount Huber; is a key junction on the Lake O’Hara Alpine Circuit and is known for high winds.

Naming and exploration. “Wiwaxy” derives from the Stoney Nakoda word for wind. Samuel E.S. Allen named it in 1894 after reportedly being knocked down by a gust in the “Gorge of the Winds”; the Geographical Names Board formalized “Wiwaxy Peaks” in 1924. The first recorded ascent was in 1951 (Church, Pullin, Roubenheimer, Whalley). Lawrence Grassi, park warden (1956–60), engineered the stone steps and ledges on the approach to Wiwaxy Gap; Grassi Ridge on the West Peak honours him.

Paleontology. The peak is the namesake of Wiwaxia corrugata, a soft-bodied Middle Cambrian organism (~505 Ma) from the Burgess Shale. The slug-like animal had scale-like sclerites and defensive spines; its phylogenetic placement (mollusc vs. annelid) remains debated. The Burgess Shale fossil beds lie within the broader stratigraphic context of the peak.

Alpine Circuit and climbing. The Lake O’Hara Alpine Circuit traverses Wiwaxy Gap and the Huber Ledges en route to Lake Oesa, offering views of the Victoria and Huber glaciers. The circuit gains ~495 m in ~1.5 km to the Gap and is recommended for experienced hikers. Grassi Ridge on the West Peak is a classic moderate climb (III, 5.7, ~12 pitches) on solid quartzite; first ascent 1962.

Access. Lake O’Hara is managed by lottery for the shuttle bus (June–October) and campground; the Elizabeth Parker Hut (Alpine Club of Canada) also uses a lottery. Pets and bicycles are prohibited on the shuttle and trails. The area is sensitive alpine habitat; stay on marked trails.