In this chapter, I introduce the critical campus ecology model (CCEM) to account for systems of oppression in an individual's ecosystem. Drawing insights from queer geographies and critical whiteness studies, I add "oppressive systems" as the fifth contextual system to the Process-Person-Context-Time model. Forces in the oppressive system, such as racism and cissexism, influence each of the individual's systems and have real, material influence on all aspects of the student's context. Further, I share how I utilized the CCEM as a framework for data collection and analysis for a study of students' conceptions of their campus LGBTQ+ center. I conclude with implications for research and practice, such as leveraging the CCEM as a tool for reflection, identity exploration, and social critique.