Many famous explorers whose travels and achievements have affected America's history are briefly introduced in this entertaining educational program. Brief historical accounts of these intrepid individuals' expeditions and discoveries are accompanied by scenice views of mountains, rivers, fields and valleys throughout the continent. Dramatic re-enactments, maps, and vintage prints are also used to enhance the histories. Intriguing facts are given about such explorers as Columbus, Balboa, de Soto, Champlain, Sir Francis Drake, Henry Hudson, James Cook, Daniel Boone, Robert Gray, Lewis and Clark, Charles Wilkes, John Fremont, and many others. American astronauts who have made expeditions into space are also featured. One of many programs in the Just the Facts Learning Series.