1. It was mapped by USGS from surveys and USN air photos , 1961-67. 2. Plotted from ANARE ( Australian National Antarctic Research Expeditions ) air photos . 3. It was also mapped from the air photos taken by Operation Highjump. 4. Mapped by USGS from ground surveys and USN air photos , 1959 65. 5. Mapped from ANARE ( Australian National Antarctic Research Expeditions ) air photos , 1965. 6. Mapped from air photos taken by the Lars Christensen Expedition, 1936-37. 7. Mapped from air photos by Hunting Aerosurveys ( 1953 57 ). 8. Remapped from air photos by ANARE ( Australian National Antarctic Research Expeditions ). 9. Mapped by USGS from surveys and U . S . Navy air photos , 1960-63. 10. First mapped from ground surveys and air photos by the Byrd Antarctic Expedition, 1928-30.
