Half Moon Crater ( [ ⚑ ] : 77°48′28″S 166°44′50″E / 77.80778°S 166.74722°E) is a volcanic crater 0.5 nautical miles (1 km) southwest of Castle Rock on Hut Point Peninsula, Ross Island, Antarctica. It was descriptively named for its shape by Frank Debenham of the British Antarctic Expedition in 1910–13, who made a plane table survey of the peninsula in 1912.[1]
This article incorporates public domain material from the United States Geological Survey document "Half Moon Crater" (content from the Geographic Names Information System).