This presentation will provide an overview of the National Centre for Truth and Reconciliation’s current GIS objectives in relation to the Missing Children’s Phase 3 Project and fulfilling Call to Action 73 – locating unmarked graves at residential schools. Key points of discussion will be data privacy, visualization tools, representation, decolonial mapping practices, and data ethics related to intergenerational trauma and mental health. After presenting examples of our work in progress, there will be an open forum for feedback related to how GIS at the NCTR can ethically address such challenges. Informed consent and advice from Indigenous community members is at the heart of what we do, we want this forum to be a unique opportunity to gain insight from industry professionals in Indigenous mapping spaces to guide what will become a national GIS database for residential school history.