The nickel deposits of Yakobi Island, southeastern Alaska

Some of the large, low‐grade nickel‐copper deposits of Bohemia Basin, Yakobi Island, south‐eastern Alaska, which previously had been mapped and studied by the United States Geological Survey, were explored during parts of 1941 and 1942 by the United States Bureau of Mines. The Gealogical Survey interpreted the geologic features of the deposits as revealed by the work of the Bureau of Mines. The explorations were made largely by diamond‐drilling. The three deposits most extensively tested are arranged around a small valley.