Adolescence is a critical period for the promotion of mental health and the treatment of mental disorders. Schools are well-positioned to address adolescent mental health. This paper describes a school mental health model, "School-Based Pathway to Care," for Canadian secondary schools that links schools with primary care providers and mental health services, enabling them to address youth mental health in a collaborative manner. The model highlights the fundamental role of mental health literacy, gatekeeper training, and education/health system integration in improving adolescent mental health, and enhancing learning environments and academic outcomes. (Contains 1 figure and 1 table.)