Name StatusApproved: NZGB Antarctic CommitteeFeatureNunataksNZ Gazette Reference2009 (77) p.1803DatumRSRGD2000GeoTag[1] PositionDescriptionTwo nunataks overlooking the head of the Ross Ice Shelf, standing just E of the terminus of Amundsen Glacier, 5 mi W of O'Brien Peak. Mapped by USGS from surveys and USN air photos, 1960-64. Named by US-ACAN for John A. MacDonald, biologist, McMurdo Station winter party, 1964.
