Derrick Peak is a prominent ice-free peak, 2,070 m, overlooking the south side of Hatherton Glacier

Hatherton Glacier

Hatherton Glacier is a large glacier flowing from the Antarctic polar plateau generally eastward along the south side of the Darwin Mountains and entering Darwin Glacier at Junction Spur....

, 3 nautical miles (6 km) west of the north end of Johnstone Ridge

Johnstone Ridge

Johnstone Ridge is a mainly ice-free ridge in the Britannia Range, extending 7 nautical miles north from Mount Olympus toward the south side of Hatherton Glacier. Named by Advisory Committee on Antarctic Names for Graeme N. Johnstone, a member of the Byrd Substation auroral party, winter 1962,...

. Named by Advisory Committee on Antarctic Names

Advisory Committee on Antarctic Names

The Advisory Committee on Antarctic Names is an advisory committee of the United States Board on Geographic Names responsible for recommending names for features in Antarctica...

 (US-ACAN) for Robert O. Derrick of the U.S. Weather Bureau, who served as assistant to the United States Antarctic Research Program (USARP) Representative at Christchurch from 1960 until his death in 1966.