Pathfinders of the West Being the Thrilling Story of the Adventures of the Men Who Discovered the Great Northwest: Radisson, La Vérendrye, Lewis and Clark

Lewis and Clark Expedition (1804-1806); Radisson, Pierre Esprit, approximately 1636-1710; La Vérendrye, Pierre Gaultier de Varennes, sieur de, 1685-1749; Hearne, Samuel, 1745-1792; Mackenzie, Alexander, Sir, 1763-1820; Northwest, Canadian -- Discovery and exploration