National Geographic Investigates: Ancient Pueblo, archaeology unlocks the secrets of America's past is an information book published by National Geographic Society. At prehistoric sites in the Four Corners states (Colorado, Utah, Arizona, New Mexico) of the American Southwest, archaeologists have searched for years, looking for clues to the history of the Pueblo people. Learn what we know about these cliff dwellers. Study the thousands of rock carvings and petroglyphs these ancient ancestors of the Pueblo left behind. Discover how scientists use ancient artifacts to learn about the lives of these early Indigenous people. The colourful illustrations, map, timeline, and glossary will assist students in understanding how archaeology works. ATOS Reading Level: 7.5; Reading Level: 7.4.