ABSTRACT: GLNARCH XI Capacity Building The unique strength of the proposed GLNARCH Capacity Building Core is the adoption of the model developed by the Native Environmental Health Research (NEHR) network previously funded under NARCH VIII. The NEHR model nurtures collaborations between Tribes, Tribal Colleges and Universities (TCUs), and Native-serving mainstream institutions. Through this network, participants can work collaboratively by sharing, and directing the necessary resources to address pressing tribal health concerns. In this way, the GLNARCH Capacity activities (both proposed here and ongoing) augment and leverage valuable, scarce resources in the most underfunded Indian Health Service (Bemidji) region, while also offering additional opportunities, such as professional development and consultation, to all participants. The activities in this Capacity Component will be executed by an experienced, established team with institutional support from the Medical College of Wisconsin (MCW), University of Wisconsin System (UW), and Great Lakes Inter-Tribal Council (GLITC), with additional support from the Inter-Tribal Council of Michigan (ITCMI). This proposal supports and complements our other GLNARCH efforts via independently achievable aims with their own distinct valuable impacts. This proposed Capacity Project will develop research capacity at each center (TCU and/or tribal community) as well as coordinate these into a regional network (NEHR). Doing so builds on established relationships under the previous funding cycle.