Port Walter is located on the southeastern coast of Baranof Island in Sitka City and Borough, Alaska. It is a body of water with two main arms, Little Port Walter and Big Port Walter. The land surrounding Port Walter is part of the Tongass National Forest. In the first half of the twentieth century it hosted three major seafood processing plants, producing primarily herring and salmon for human and animal consumption, fish oil, and fertilizer. In 1917 there were 375 men and women working at the Port Walter processing plants.