Mezzo Buttress () is a rocky buttress at the head of
Barilari Bay just east of
Lawrie Glacier, on the west coast of
Graham Land, Antarctica. It was charted by the British Graham Land Expedition under
John Rymill, 1934–37, and was so named by the UK Antarctic Place-Names Committee in 1959 because the face of this buttress is conspicuously divided diagonally, half being composed of black rock and the other half of red rock, "" being an
Italian language word meaning "half".
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