Today’s Free Photo for Windows, Mac, Android, iPhone, and iPad. Huntsville is a city located primarily in Madison County in the Appalachian region of northern Alabama. Huntsville is the county seat of Madison County. The city. The San Manuel Amphitheater is at 2575 Glen Helen Pkwy, Devore. Performing with Keith will be an unnamed special guest, while Sheryl Crow and Gloriana open for Rascal Flatts. McGraw is set for May…