This 1787 map shows the voyages of the leading Russian explorers of the North Pacific: Bering, Chirikov, Krenitsyn, Shpanberg, Walton, Shel'ting, and Petushkov. It also shows the 1778-79 voyage of British Captain James Cook. The route of each voyage is depicted in great detail, with ship locations plotted by the day. Other details on the map include administrative borders, population centers, Chukchi dwellings, and impassable ice. The inset map is of Kodiak Island, Alaska, denoted here by its Russian name of Kykhtak. Discoveries in geography; Discovery and exploration; Pacific Ocean