"North America." . . "Explorers Biography 17th century." . . "Mississippi River" . . "France." . . . . "Juvenile works" . . . . . . . . "A biography of the seventeenth-century French explorer who led the first European expedition to track the Mississippi River." . . . . "A biography of the seventeenth-century French explorer who, among other exploits, led the first European expedition to track the Mississippi River to the Gulf of Mexico." . . . "Biography" . . . . . . . . "Rene Robert Cavelier, Sieur de La Salle"@en . "Rene-Robert Cavelier, sieur de la Salle" . . . . . . . . "René-Robert Cavelier, sieur de La Salle" . "Explorers." . . "La Salle, Rene Robert Cavelier (French explorer)" . . "America" . . "Explorateurs Amérique Biographies Ouvrages pour la jeunesse." . . "Mississippi (Fleuve)" . . "Explorateurs France Biographies Ouvrages pour la jeunesse." . . "Discoveries in geography 17th century." . .