We fly out of Los Angeles area into Denver, CO mid August and plan to drive from there to SD and spend time in Keystone/Rapid City area. I mapped it at a 6 hour drive. I was wondering if anyone knew if that estimate is accurate and whether there is a good town 1/2 to stop and spend time/or the night in. I have a 9 year old with a lot of energy and he would do better with some activity in the middle of our drive. Any thoughts or advice would be greatly appreciated.