In much of mainstream American culture an enthusiasm for innovation can overshadow the older, established technologies that (often invisibly) sustain society. In this course, we will examine the interplay of environment, technology, and labor that shapes infrastructures and the acts of maintenance that sustain these naturalized systems. We will explore the history and politics of local and regional networks including but not limited to energy, transportation, and information. This course includes site visits and presentations by campus infrastructure experts that help guide our critical encounters with the naturalized technological systems that support daily life and work at Caltech, and which both connect us to and separate us from the surrounding region.