This article describes the California 4-H Youth Development Program’s (4-H YDP) creation of a Youth Leadership Summit (YLS), as well as information gained from three summits held in the summers of 1999 through 2001. Previous studies (Camino, 2000; Lerner, 2000; Zeldin, 2000) suggested that youth-adult collaborations along with meaningful activities could have a positive impact on youth. Therefore, the summits emphasized the positive youth development model, employed youth-adult collaborations, and encouraged youth to become involved in their communities. In this article, we share the YLS procedures, the roles of youth and adults and the engagement of youth on community issues. The YLS model developed by the California 4-H YDP impacted the individuals and communities involved in important and positive ways and might be a useful model to follow in the establishment of similar youth programs developed by youth professionals.