DRAFT collection description: This nascent collection is an outgrowth of a program generously funded by a Sawyer Seminar on the Comparative Study of Cultures grant from The Andrew W. Mellon Foundation. The grant funded a seminar, Deep Horizons: Making Visible an Unseen Spectrum of Ecological Casualties & Prospects, which was offered during the 2020-2021 academic year at the University of Colorado Boulder. Numerous public events, including panels, lectures, and art exhibitions, were held, with participation from preeminent scholars and practitioners. The program aimed to traverse multiple disciplines and perspectives to investigate intersectional questions concerning the changing planet as it affects specific peoples, communities, wildlife species, and ecosystems in varying and inequitable ways. In the coming years this collection will expand upon these initial activities to become a broader teaching and research resource at CU Boulder and beyond.