Camp Hale in Colorado was a military base created to train soldiers to fight in the snow for WW2.
At one point it housed Nazi POWs from the North Africa battles.
Story is that an American soldier was a Nazi sympathizer and arranged for a car for a couple of Nazis to escape. They made it across the border into Mexico until a farmer with a horse and cart saw them. Thought it was strange and reported them. They Mexican authorities caught the suspects and they were returned to base shortly thereafter.