The Burrow is part of Catalog of Stains, Bollinger's ongoing writing and visual art project which is a container and space of inquiry the artist works within, creating abstract and representational objects which are assembled together to reveal patterns, rhythms, and repetitions. "Stains are incidents, markers of time, material, immaterial, psychic or psychological. When these stains are in disarray, objects and environments take on new meanings and can underscore the vulnerability of perception." Working with the materiality of poured aluminum, Bollinger gives form to her own stains and seepages while shaping the place where the material and immaterial, visible and invisible, psychic and physical impressions collide.