Mt Zacky is a sub-summit, of a sub-summit of Mt. Midgard.
If you tire of glacier travel to Asgard and surrounding worthy objectives, this wall is a great spot for "cragging"; but its still more than 700m tall.

From Summit Lake Shelter, hike up towards Asgard on the Caribou Glacier. Once you can see Asgard, Mt Zacky is an insignificant wall south west of Asgard and directly west of the confluence of the Parade and Caribou Glaciers.