Washington State University (WSU) will extend the Tribal Digital Stewardship Cohort Training program, which supports the educational and curatorial needs of tribal archives, libraries, and museums, to include 24 participants from 12 tribes over two years. Participants will receive online and face-to-face trainings as well as mentorship. Emphasizing the collaborative curation method, this program expands the digital stewardship lifecycle curriculum created at WSU to include methods and tools to curate collections in partnership with non-native repositories through ethical frameworks for sustained engagement. This model emphasizes long-term engagement, sharing digital content, and enriching metadata with tribal knowledge for broad accessibility. The project will include updates to the existing Tribal Digital Stewardship curriculum as well as the creation and dissemination of Open Educational Resources (OER) for all curricular modules.