In 1954, a small team of Australian men landed at Horseshoe Harbor and began constructing Mawson Station: the permanent colonization of Antarctica was initiated. Two years later, Americans began the construction of their major Antarctic base, McMurdo. Although Antarctica is routinely represented as an empty wilderness, over the last fifty years, tens of thousands of humans have occupied the continent, most of them living in Antarctica’s 40 national bases. What kinds of spaces are these Antarctican colonial settlements? How do they function materially, ideologically, legally, and, important for this article, spatially? This article explores the anatomy of two of the oldest and most populous of these spaces, Mawson and McMurdo stations: it at...