These mountains, together with other scattered peaks, form an arc about 420 km (260 mi) long, extending from the vicinity of Mount Starlight in the north to Goodspeed Nunataks in the south.

[1] These mountains were first observed and photographed from a distance by airmen of USN Operation Highjump, 1946–47.

They were examined by several ANARE (Australian National Antarctic Research Expeditions) parties and mapped in the years 1954–61.

[1] They have been found to contain large deposits of iron ore.[2] They were named by ANCA in 1956 for King Charles III, then the eight-year-old Prince Charles and son of the late Queen Elizabeth II.

This article incorporates public domain material from websites or documents of the United States Geological Survey.