Name StatusApproved: NZGB Antarctic CommitteeFeatureNunatakNZ Gazette Reference2009 (77) p.1803DatumRSRGD2000GeoTag[1] PositionDescriptionA small nunatak that lies 3 mi S of Mount Phelen and marks the S extremity of the Emlen Peaks in the Usarp Mountains. Mapped by USGS from surveys and U.S. Navy air photos, 1959-64. Named by US-ACAN for Charles M. Heuser, biolab technician at McMurdo Station, 1966-67.