This report presents the results of the 1998 Marbled Murrelet (Brachyramphus marmoratus) inventory and research in Clayoquot Sound, British Columbia. Clayoquot Sound has the largest contiguous stretch of old growth temperate rainforest on Vancouver Island. It encompasses the southernmost multi-watershed complex of undisturbed rainforest in North America. Extensive protests against logging and recognition of the area's non-forestry related values have resulted in special planning efforts for this region. In the Land Use Decision of 1993, the government of British Columbia increased the number of protected areas in Clayoquot Sound and designated Special Management Areas (SMA). Furthermore, the Scientific Panel for Sustainable Forest Practices in Clayoquot Sound produced a large body of recommendations on planning processes, forest practices, and monitoring activities. It is expected that Clayoquot Sound will become a model of sustainable forestry in an economical, social, and ecological sense.