Map of New England, New York and Pennsylvania at the time of the French and Indian War. Many familiar cities and towns appear along the coasts and rivers, but the interior remains largely unsettled. The area just east of the Appalachians is labeled “Parts Unknown”, with a scattering of Indian settlements. A number of forts are shown, mostly in the vicinity of the Great Lakes and Lake Champlain. Bellin was Hydrographer in the French Dépôt de la Marine and produced a great many maps and charts of high quality.