The FEWSION project is a mesoscale big data effort for the U.S. Food, Energy, and Water system (FEWS). We are building the first complete data-driven description of this system and its environmental footprints and dependencies so that scientists and policymakers can understand the FEW security, resilience, and environmental sustainability of every city, state, and community in the nation. Visualizations of the system are available to the public, so you can see where your food, energy, and water come from and benchmark its sustainability. The National Science Foundation founded FEWSION in 2016 with a $3 Million grant from the INFEWS program (ACI-1639529) to Northern Arizona University and a team of academic and national lab partners. Applications in emergency management and community education are emerging, and collaborations are welcome.