Gridley Unified School District serves just over 2,000 students across five schools in a small rural town in the upper Sacramento Valley. The median annual household income in Gridley is just over 60% of the state average. Gridley Unified is one of seven districts studied by researchers at the Learning Policy Institute in a mixed-methods study that sought to learn from positive outlier districts in which African American, Latino/a, and White students did better than predicted on California's mathematics and English language arts tests from 2015 through 2017, after accounting for differences in socioeconomic status. This in-depth case study describes the critical practices and policies within Gridley Unified that have promoted student learning, especially among students of color, in the context of the Common Core State Standards (CCSS) and the deeper learning they seek to foster. Through an analysis of interview, documentary, and observational evidence, this case study describes key factors that helped support student success in Gridley Unified.