Description
Chock Island is located at junction of Snug Cove and Gambier Bay, on SE coast of Admiralty I., 59 mi. NE of Sitka, Alex. Arch.
History
Named in 1889 by Lieutenant Commander H. B. Mansfield, U.S. Navy (USN); published in 1892 by U.S. Coast and Geodetic Survey (USC&GS).