Porro Bluff
Porro Bluff (64°45′S62°33′W / 64.750°S 62.550°W / -64.750; -62.550) is a bluff lying south of Birdsend Bluff and overlooking Errera Channel on the Danco Coast, western Graham Land, Antarctica. Shown on an Argentine government chart of 1950. Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1960 for Ignazio Porro (1795–1875), Italian engineer who in 1851 invented a prism combination, important in the development of stereo-plotting instruments.
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This article incorporates public domain material from the United States Geological Survey document: "Porro Bluff". (content from the Geographic Names Information System)