The West Landfill is a garbage dump occupying an extension of several square kilometers, bordering with Ciudad Nezahualcóyotl and adjoining the Mexico City Benito Juarez Airport. The ground it now occupies was once part of the ancient Lake Texcoco, inscribed in the terrains protected by the Mexican federal government under the same name. The trash in this landfill is compacted into platforms one meter high, with these platforms serving as a containing barrier to a regulatory storage reservoir by the name of Lake Churubusco. The lake takes in residual waters coming from the region adjoined to it, directly from its drains. The waters are black and oily, bubbles emerging from them. I discover that, upon these waters, some small, thin, limp birds rest, roaming around the rubbish. The mouth of the main drain produces a white, dense, and abundant foam that overflows to the lake’s shores, landing at one’s feet. [...]