Cape Shackleton is a cape in Avannaata municipality in northwestern Greenland. The cape is the western promontory on Apparsuit Island,[1] delimiting the northern end of Tasiusaq Bay, an indentation of Baffin Bay in the Upernavik Archipelago.
This headland was known to whalers as "Horse's Head".[2] 73.8036°N -56.8325°W