The Dordogne is a river in south-central and southwest France. It is 483.1 km (300.2 mi) long. The Dordogne and its watershed were designated Biosphere Reserve by UNESCO on 11 July 2012.

Périgord is a natural region and former province of France, which corresponds roughly to the current Dordogne department, now forming the northern part of the administrative region of Nouvelle-Aquitaine. It is divided into four areas called the Périgord Noir (Black), named so for the truffles that can be found there, the Périgord Blanc (White), for chalk cliffs and quarries, the Périgord Vert (Green), for forests and forestry and the Périgord Pourpre (Purple), for wine and viticulture. The geography and natural resources of Périgord make it a region rich in history and wildlife, and the newly created Parc Naturel Régional Périgord-Limousin aims to conserve it as such.