During 1978-79, the Bureau of Mines surveyed the mineral potential of the west portion of Western Chichagof Island as part of the examination of the Western Chichagof and Yakobi Islands Wilderness Study Area, Tongass National Forest, southeast Alaska. The study included literature and claims records searches; field examinations of the reported mines, prospects, or claims; and field evaluation of geochemical anomalies noted by the U.S. Geological survey during concurrent investigations. Two mineralized areas were found. One, called the slocum arm molybdenum area, is estimated to have moderate potential for the development of porphyry or vein-type molybdenum deposits. The other, called the west coast gold area, is estimated to have moderate potential for the development of fault controlled gold-silver lode deposits.