Mount Rushmore, Badlands, Wind Cave: Going Underground

Book Description

About Graf, Mike

Mike Graf has shared his writing and national park experiences with children and teachers in hundreds of schools. Graf has been a TV weathercaster at six different television stations and an elementary schoolteacher for nine years. Since becoming a full-time writer, he has penned more than 70 books for children. A national park fanatic, Graf visits about twenty-five national parks across the country every year. He lives in Chico, California.