The Chattahoochee runs like an artery through Columbus' urban core, pumping water through the rift between its downtown and Phenix City. The river connects multiple towns across Alabama and Georgia, a relationship that has had both commercial and recreational ramifications. Today, the stretch of whitewater that separates the two cities is the longest urban rafting course in the world, and one of Columbus’ biggest draws for outdoor enthusiasts. Most of the city’s historic buildings take the form of either functioning, abandoned, or repurposed mill architecture. Many of the neighborhoods within the city limits started off as communities for the mill workers. Several of the mills had dams spanning the breadth of the river, most of which have since been demolished to enable more white water rafting. This site was selected because the overlap of the artistic and historic networks, the rich character of local materials, and the juxtaposition of urban and natural fabrics resulted in a preexisting set of atmospheric conditions. The river especially provides a connection between primitive, resultant, and considered atmosphere within an urban context.