This study was conducted with first-generation students (FGS) at a moderately selective, large public research university in the Midwest. At the time of this study, the participating campus enrolled about 43,700 undergraduates, approximately 11% of whom were FGS. To conduct this study, the authors administered a campus environments survey to all undergraduates in Spring 2017. A total of 1,049 self-identified FGS (about 22% of all enrolled FGS) completed the survey and were included in the final sample. The survey asked about students' backgrounds (e.g., parental education level, race, age), college status (e.g., enrollment status, credits completed), dispositions (e.g., self-efficacy, sense of belonging), and perceptions of campus environments. Findings suggest that for FGS perceptions of greater common ground, relevant learning opportunities, and collectivist orientations in the campus environment are linked indirectly to increased sense of belonging through their increases in students' sense of validation.