The Goodyear Marathons were made in China at least 3 years ago when I switched to the Endurance tire. The Chinese made Goodyear Marathons were so bad thats why Ranger switched to Carlisle. That came strait from the Ranger trailer department when I was talking to them about the problems I was having with Carlisle. At that time the Endurance was the only US made ST rated trailer tire. Made at the Goodyear plant in Gadsden Alabama. I don't know if the Goodyear Marathon is still available or not. If it is I don't know where they are made. All I know is if a US made tire is available, thats what I will run.