Many components of the social system interact with one another to produce group-level behavior that determines the functionality of the small group in outdoor adventure education (OAE). This article synthesizes the contemporary literature and theory regarding eight aspects of the OAE social system: (a) Macro Contextual Factors, (b) Student Factors, (c) Instructor Factors, (d) Goals, (e) Group Factors, (f) Group Outcomes, (g) Group Dependent Individual Outcomes, and (h) Time. Directions for future research and implications for OAE are discussed.