This self-guided GPS audio tour is Part 3 of a four-part eastbound Pennsylvania Turnpike series that eliminates highway boredom. It tells incredible prehistoric tales of ancient Indians who once walked this trail and the dramas that unfolded as Indians and European settlers collide. <br><br>This part of the series begins at the Sideling Hill travel plaza. It continues over and under wilderness ridges before levelling off and crossing the broad Susquehanna River Valley. By the time you reach the end at the Highspire travel plaza, you also will have reached a new understanding about life here centuries ago.<br><br>We'll hear the story of Tree Worm and his controlling mother-in-law. We'll learn why a tribe was called the Hemp People. Do you like Indian Summers? The people who coined the term absolutely dreaded them. I'll tell you why. We'll learn to speak a little Seneca, and get the story on a boarding school that served as the model for turning Indians into "true civilized Americans."