A large earthquake. A tsunami. Wildfires. Floods. None of these devastating events or their consequences stop at the border. During an emergency, a correct map can mean the difference between life and death. It requires more than a single map however: it necessitates the development of appropriate wayfinding systems for emergencies and, more importantly, the power of community-driven action. Through targeted workshops, this initiative aims to establish a localized visual language for emergencies in the San Diego-Tijuana context, enhance wayfinding systems and foster community engagement in disaster preparedness.