"New France" consisted of the area colonized and ruled by France in North America from the 16th to the 18th centuries. This title, which follows on from Fortress 27: French Fortresses in North America 1534-1763: Québec, Montréal, Louisbourg and New Orleans and Fortress 75: The Forts of New France in Northeast America 1600-1763, takes a look at the forts guarding the frontier defenses of New France from the Great Lakes, down the Mississippi River to the Gulf of Mexico. Among the sites examined are forts Crèvecoeur (Ilinois), Biloxi (on the Mississippi), St Jean-Baptiste (Louisiana), Natchitoches (Louisiana), de Chartres (on the Mississippi), Condé (Alabama), and Toulouse (Alabama).