 In 1748 a commitment was made by Roland-Michel Barrin de La Galissonière, the Governor General of New France, to send Picquet to the Thousand Islands area for that purpose.In 1749, Picquet built a mission fort named Fort de La Présentation near the junction of the Oswegatchie River and the St Lawrence River.By 1755 it had a large population of Iroquois loyal to France.