Farm fields are an integral part of the Iowa landscape. Seemingly simple-looking from the surface, an unknowing observer might consider a farm field a plain patch of dirt. Much less known is that these fields, with their built systems, make up the majority of space within the rural built environment. Today, these spaces are highly designed systems of infrastructure that includes miles of subterranean tile drainage. Through the process of deep mapping, which allows for the combination of multiple quantitative, qualitative, and multimedia data about a place with the purpose of building a spatial narrative, this project tells the story of Lake Cairo, a former lake located just northwest of Jewell in Hamilton County, Iowa. Lake Cairo is one example of many in a massive de-centralized and uncoordinated undertaking to drain the northern Iowa landscape of its lakes during the first part of the twentieth-century. This process of change shifted the ecology and land use putting into motion changes that would affect the communities, economy, and the environment of Iowa for decades to come.