This article incorporates public domain material from "Johnstone Ridge". Geographic Names Information System. United States Geological Survey.
Johnstone Ridge (80°8′S 156°40′E / 80.133°S 156.667°E) is a mainly ice-free ridge in the Britannia Range, Antarctica, extending for 7 nautical miles (13 km) northward from Mount Olympus toward the south side of Hatherton Glacier. It was named by the Advisory Committee on Antarctic Names for Graeme N. Johnstone, a member of the Byrd Substation auroral party, winter 1962, and the McMurdo Station winter party, 1964.[1]