Name StatusApproved: NZGB Antarctic CommitteeFeatureIslandNZ Gazette Reference2009 (77) p.1803DatumRSRGD2000GeoTag[1] PositionDescriptionIsland 1 mi long, rising above the western part of the Ross Ice Shelf 11 mi NE of Cape Murray. Mapped by the USGS from tellurometer surveys and Navy air photos, 1959-63. Named by US-ACAN for Cdr. James J. Brosnahan, USN, commander of the McMurdo Station winter party, 1961.
