Fresh water has a unifying role at the ecosystem and human level. Water, without fail, is recognized throughout the globe as crucial to human life. By examining a dispute resolution case study relating to Mt. Ida, near Salmon Arm, B.C., this paper offers a probe of the question ?hat is water?? An Elder poses three questions about fresh water's role in the forest ecosystem; the answers are sought using the concept of ?lue ecology,?which interweaves Traditional Ecological Knowledge (TEK) and Western science. The purpose is to reveal cross-cultural assumptions and definitions of fresh water, and to assist in reconciling forest-related conflicts between First Nations and government agencies. Because water is a common interest to all people, blue ecology is proposed as a means towards this reconciliation. The paper presents five guiding principles that should be useful to mediators and forests managers seeking to build co-operative cross-cultural solutions.