in Canning River, 4.7 mi. W of Mount Copleston and 47 mi. S of Flaxman I., Arctic Slope. 0.2 mile long.
Leffingwell did not list this as a geographic name but wrote (1919, p. 119), "A small outcrop of black shale was observed * * * at a small island called Black Island, in Canning River, opposite Mount Copleston."