- References
{{Orphan|date=October 2010}}Contortion Spur ({{Coord|80|25|S|160|9|E|source:GNIS|display=inline,title}}) is the largest and easternmost of three spurs which descend northwards from Mount Madison near the mouth of Byrd Glacier in Antarctica. The spur exposes a spectacular syncline of white marble and black schist. It was geologically mapped on December 10, 2000, by Edmund Stump of the United States Antarctic Program; he suggested the name because of the skewed form of the spur. References- {{usgs-gazetteer|id=18265}}
{{ShackletonCoast-geo-stub}} 2 : Ridges of the Ross Dependency|Shackleton Coast |