Thunder National is another monster truck circuit that falls under the auspices of Monster Jam. These events cater to families, are usually held in smaller arenas, and don't race on dirt tracks. In 2011, you can catch Thunder Nationals in places like Wichita, Wheeling, Grand Rapids and Rockford. Don't worry, the big time trucks like Grave Digger and El Toro Loco show up at these events too.<b