Few places were as important in the seventeenth-century European colonial New World as the pays d’en haut. This term means "upper country" and refers to the western Great Lakes (Huron, Michigan, and Superior) and the areas immediately north, south, and west of them. The region was significant because of its large Native American population, because it had an extensive riverine system needed for beaver populations—essential to the fur trade—and because it held the transportation key to westward expansion. 
     It was vital to the French, who controlled the region, to be on good terms with its peoples. To maintain good relations through trade and diplomacy with the nations in the pays d’en haut, the French built a number of posts, including one at Michilimackinac and one on the St. Joseph River (near Niles, Michigan). These posts were garrisoned by French troops and run by French commanders who contracted with merchants to manage business matters.
     Edge of Empire provides both an overview and an intensely detailed look at Michilimackinac at a very specific period of history. While the introduction offers an overview of the French fur trade, of the place of Michilimackinac in that network, and of what Michilimackinac was like in the years up to 1716, the body of the book is comprised of over sixty French-language documents, now translated into English. Collected from archives in France, Canada, and the United States, the documents identify many of the people involved in the trade and reveal a great deal about the personal and professional relations among people who traded. They also reveal clearly the process by which trade was carried out, including the roles of both Native Americans and women. At the same time, the documents open a window into French colonial society in New France.

The documentary biography of Jacques Legardeur de Saint-Pierre, an officer in the Troupes de la Marine, who served throughout New France, sheds new light on the business activity of French colonial officers stationed in the West. Many of the eighty previously untranslated documents in Jacques Legardeur de Saint-Pierre demonstrate the extent and profitability of Saint-Pierre's pursuit of business activities while performing official duties in eighteenth-century French North America. The quest for profit permeated Saint- Pierre's career, particularly his command of the Western Sea Post after he succeeded the fabled Pierre Gaultier de Varennes et de la Vérendrye. Saint-Pierre and his secret partner General Jacques-Pierre de Taffanel de La Jonquière, Intendant François Bigot, and Meret, secretary to La Jonquière, used their positions to engage in extensive trade, especially brandy, with the Cree and Assiniboine northwest of Lake Superior. Saint-Pierre's activities provide fresh insights into the North American fur trade.

In 1754, Charles de Raymond, chevalier of the Royal and Military Order of Saint Louis and a captain in the Troupes de la Marine wrote a bold, candid, and revealing expose; on the French colonial posts and settlements of New France. On the Eve of the Conquest, more than an annotated translation, includes a discussion on the historical background of the start of the French and Indian War, as well as a concise biography of Raymond and Michel Le Courtois de Surlaville, the army colonel at the French court to whom the report was sent. The events surrounding Raymond's controversial year as commandant of the post (now Fort Wayne, Indiana) in 1749-50, his disputed recall by Governor General Jacques-Pierre de Taffanel de La Jonquier, and the subsequent friction between La Jonquiere's successor, Ange de Menneville Duqesne, and Raymond are presented in detail and illustrated by translations of their correspondence.