The Nontronnais is a natural region in the northern Dordogne département and therefore part of Nouvelle-Aquitaine. It covers the surrounding of the centrally placed subprefecture Nontron. Jules Verne had called the Nontronnais (Green Périgord) referring to the region's lush vegetation. The term Périgord vert is used mainly in tourism, but is not identical with the Nontronnais, which covers a much smaller area.