Alaska Trees and Shrubs
by Les Viereck, Elbert L. Little
shows some places on a map where it is reported to grow. The last time I was in POW, the FS guys with their boots in the woods were complaining about the "preservationist" attitudes of the new management at the office. That was over thirty years ago.
a lot of creek bottoms remain uncut to preserve salmon habitat, but you should bring a revolver and a flashlight if you intend to explore them during salmon season.