Riddiford Nunatak
Riddiford Nunatak (80°59′S 159°48′E) is a small but conspicuous nunatak (c.1200 m) with an adjoining lower outcrop, lying 2.5 nautical miles (4.6 km) west-northwest of Abercrombie Crests in Darley Hills, Churchill Mountains. Named by Advisory Committee on Antarctic Names (US-ACAN) after Charles E. Riddiford, National Geographic Magazine cartographer/typographer, about 1923–58; his drawings illustrate the NGM monograph The Round Earth on Flat Paper, 1947. One of several features in Darley Hills that are named for NGS staff.
This article incorporates public domain material from the United States Geological Survey document: "Riddiford Nunatak". (content from the Geographic Names Information System) 
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