Archaeo-mobility is a design field focused on the integration of preventive archaeology into everyday transportation networks. However, most experiments have been conducted in urban areas, leaving a gap in design methods for high-speed infrastructures in the countryside. In these regions, preventive archaeology excavations often result in fragmented traces scattered across the land, and it is important to explore methods for the narrative of such remnants through the space of movement. At the same time, high-speed tunnels generate an Anthropocenic amount of waste soil, changing the land and its geological asset. However, this material presents opportunities for reuse in the design of earthworks. By conceptualizing archaeological and infrastructural traces as forms of soil recomposition, it is possible to imagine recycling methods of Tunnel Excavated Material (TEM) to model architectural devices that allow historical narratives while mitigating soil hazard. This study analyses European preventive archaeology experiences, crossing them with land-art sculptures and earthworks for heritage design to summarise strategies for a circular approach to high-speed archaeo-mobility. The article shows how waste soil earthworks can be useful in reducing the environmental impact of TEM, improving heritage and landscape regeneration.