Pennsylvania State Route 97 is a north south highway in Southeastern Adams County. It runs from U.S. Rt. 15, near Gettysburg, to the Maryland/Pennsylvania State Line, near Kingsdale. PA St Rt 97 passes through the following highways in Adams County. Littlestown PA St Rt 97 is not multi-plexed in Adams County. PA St Rt 97 intersects the following highways in Adams County. U.S. Rt. 15, near Gettysburg. Pennsylvania State Route 194, at Littletown.