Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1972 after the De Havilland Otter aircraft which supported the CTAE.

Mountain having two peaks, the highest 990 metres (3,250 ft), on the south side of the mouth of Blaiklock Glacier in the west part of the Shackleton Range.

Mountain, 760 metres (2,490 ft), which stands 2 miles (3.2 km) south of Mount Lowe at the west extremity of Shackleton Range.

Mountain, 1,200 metres (3,900 ft), near the head of Blaiklock Glacier, 2 miles (3.2 km) south of Trey Peaks in the west part of the Shackleton Range.

First mapped in 1957 by the CTAE and so named because this prominent landmark was the turning point for aircraft and sledging parties of the expedition rounding the southwest end of the Shackleton Range.

Rock heights rising to 1,335 metres (4,380 ft) at the head of Blaiklock Glacier, forming the southeast extremity of Otter Highlands in western Shackleton Range.