- Operose Peak
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Operose Peak (80°6′S 156°14′E / 80.1°S 156.233°E) is a peak above Onnum Valley to the southwest of Derrick Peak in the Britannia Range. The steep lower slopes of the peak are of Beacon sandstone; the top (2130 m) is made up of a thick dolerite sill. The Latin name means laborious or requiring great pain reflecting the steepness of the slopes.
This article incorporates public domain material from the United States Geological Survey document "Operose Peak" (content from the Geographic Names Information System).
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