Part of an international series of amply illustrated, colorful, small size books for children ages 5 to 10, this volume describes the pioneers westward movement across the United States; relates the experiences of crossing the Great Plains; and talks about the jobs that grew out of the experiences: trappers, cowboys, and prospectors. Brief biographies of men like Buffalo Bill Cody are given and a discussion of what life was like after 1830 is presented. (NL)