74°05′S116°31′W / 74.083°S 116.517°W / -74.083; -116.517.
An ice-covered headland midway on the east side of Wright Island.
Named by US-ACAN in 1977 after Commander David D. Beyl, United States Navy, Operations Officer, Operation Deep Freeze 1976, with responsibility for planning the Dome Charlie aircraft recovery program which resulted in the successful recovery of two LC-130 aircraft damaged during Operation Deep Freeze 1975.[3]
73°57′S116°49′W / 73.950°S 116.817°W / -73.950; -116.817.
Exposed rocks on the west side of Wright Island, 9 nautical miles (17 km; 10 mi) southwest of Cape Felt.
Mapped by the United States Geological Survey (USGS) from surveys and United States Navy aerial photographs, 1959-67.
Named by US-ACAN after Lieutenant Robert B. Armbruster, United States Navy, Communications Officer at Christchurch, New Zealand, Operation Deep Freeze, 1963 and 1964.[5]