This project conducts an interdisciplinary, technical assessment of key social-ecological vulnerabilities, risks, and response capacities of the Wind River Indian Reservation (WRIR) to inform development of decision tools to support drought preparedness. It also provides opportunities for 1) development of tribal technical capacity for drought preparedness, and 2) educational programming guided by tribal needs, Traditional Ecological Knowledge (TEK), and indigenous observations of drought for tribal members, with a longer-term goal of transferring lessons learned to other tribes and non-tribal entities. This project has foundational partnerships between the Eastern Shoshone and Northern Arapaho tribes of the WRIR, the National Drought Mitigation Center (NDMC) at the University of Nebraska-Lincoln, the North Central Climate Science Center (NCCSC) at Colorado State University, University of Wyoming EPSCoR, and multiple government agencies and university partners to develop decision tools to support drought preparedness. Other partners include the USDA Northern Plains Regional Climate Hub and NRCS, the Western Water Assessment at CU Boulder, NOAA National Integrated Drought Information System (NIDIS), the High Plains Regional Climate Center, US Fish and Wildlife Service, USGS, BIA, Great Northern LCC, and other North Central University Consortium scientists. The project’s decision target is a WRIR Drought Management Plan that integrates state-of-the art climate science with hydrologic, social, and ecological vulnerabilities and risks, and identifies response capacities and strategies to support the Tribal Water Code and related resources management.