Eiao

Eiao is the largest of the extreme northwestern Marquesas Islands, a high island with a plateau at its summit. Archaeologists have found stone-tool workshops on its northern plateau, mainly in the Hanataaitoki valley, where basalt adzes were made, probably in the fourteenth to seventeenth centuries. Adzes from the island have turned up on other islands as far away as Kiribati. In 1791 the American captain Joseph Ingraham named it Knox Island after Henry Knox, then US Secretary of War.