INTRODUCTION: Native Americans suffer from disparities in nearly every measure of health. Reservation-based tribal communities also have many assets, often including land and water access, extended family ties, spiritual and cultural health resiliency, and community health organizations. This presentation shares methods and early results from the first year of a five-year CBPR project that aims to leverage these assets and assess health impacts of home food gardens with Eastern Shoshone and Northern Arapaho families. METHODS: Partners co-designed the project during a 2013 pilot phase. We are using a delayed-intervention randomized control trial design to identify health impacts of a two-year home gardening intervention with 100 families on the Wind River Indian Reservation. The primary outcome is adult BMI. We are also assessing other biometric, blood, and survey-based indicators. A reservation-based partner is leading the development and dissemination of an effective gardening support program, and a community advisory board guides the project. RESULTS: We will share the project origins and design, our qualitative findings and quantitative indicators from the planning pilot, the baseline data from the first wave of 20 families (including 38 adults) collected in early 2016, and some provisional results from our second data collection in August 2016. DISCUSSION: We will discuss implications for 1) CBPR design for randomized trials and 2) the promise of supporting home gardens as a scalable and empowering health intervention that may enable people to be not just consumers but also producers of their own food and health.