Outdoor School for All! Diverse Programming and Outcomes in Oregon is a participatory evaluation effort building understanding and knowledge about current outdoor school programming and its intended outcomes. This is an ongoing collaborative project of the Outdoor School Program and the Oregon Environmental Literacy Program, with support from the Gray Family Foundation and the Friends of Outdoor School. Beginning in 2016, key stakeholders, including outdoor school providers, teachers, administrators, students, and others across the state came together to build understanding and knowledge about current outdoor school programming and intended outcomes. We built a common measurement system based on legislative requirements, a wide variety of data sources, existing literature/knowledge base and substantial input from stakeholders. Data gathered in this project are expected to support several elements of the statewide program. These include: legislative reporting requirements (OR-SB 439); community engagement and outreach; diversity, equity and inclusion; program and curriculum development; professional development and learning; and research, evaluation and assessment. The attached report details findings from a 2018 pilot study of outdoor schools across the state of Oregon including survey results from students, educators, and providers.