In areas of Southern Colorado and Northern New Mexico, Indigenous and Hispanic communities have lived in both harmony and conflict since the late 16th century – but in the late 19th century, the impact of U.S. imperial expansion and the legacy of Indigenous enslavement eclipsed that history. Using adobe architecture as its main throughline, Mud Frontier explores the complex cultural confluences in this region and its painful legacy of colonialism, while grounding its focus on the earth and the land. Mud Frontier: Architecture at the Borderlands offers an intimate, tactile look at Mud Frontiers, a project led by artist-architects Ronald Rael and Virginia San Fratello, who use 3D-printing technology to build adobe structures on Rael’s ancestral homelands in Colorado’s San Luis Valley. Using energy-efficient, ecologically-friendly, and affordable construction methods, Mud Frontier draws upon the long-lasting links between Indigenous and Hispanic cultures of the area, paying homage to the past while simultaneously moving towards a more sustainable future.