This pamphlet was published as part of Field Notes: Observing Lake Union, an audio tour of the Cheshiahud Lake Union Loop. The project explored how changing conceptions of nature, and our place within it, have shaped Seattle’s Lake Union over the last two hundred years. Through interviews with historians, scientists, naturalists, landscape architects, urban horticulturalists, and members of the native Muckleshoot tribe; the piece focused on the underlying ecology of Lake Union and its transformation through eras of geologic change, Native American stewardship, European settlement, commercial industry and large-scale infrastructural development as well as urban planning and park design. Field Notes probed the complex interplay between human values and natural ecologies that have shaped Lake Union today. Field Notes: Observing Lake Union was commissioned by the Seattle Office of Arts & Cultural Affairs. More information at studioforurbanprojects.org.