Route 66 is deeply tied to American history. It brought Dust Bowl refugees to California, moved troops across the country during World War 2 and ushered in the family road trip. But eventually freeways dominated the landscape and that made things tough for Mother Road businesses. So the National Park Service stepped in with a grant program to help Route 66 communities survive. That program is set to expire soon and business owners are worried. KNAU’s Justin Regan has more.