Weiss defines the unit of analysis as 'the entity about which data are collected, analyzed, and conclusions drawn.' In contrast to most evaluations that are conducted at the program level, this study examined the work of two affiliated organizations within the U.S. National Park Service (NPS): Marsh-Billings-Rockefeller National Historical Park and the Conservation Study Institute co-located in Woodstock, Vermont. The evaluation elicited critical reflections from stakeholders on the successes and challenges of the Park's and Institute's major undertakings. Interviewees also considered strategic directions for the organizations' next decade given the NPS context and broader trends in conservation. The most valuable findings included insights about the evolving context in which these two entities operate and stakeholders' articulation of the role that future Park and Institute programming might play in advancing collaborative conservation. The session will feature client and evaluator perspectives on the organizational learning prompted by a study of this scope.