I traveled on route 288 to route 40 and was at a distance of 30 km from tres lagos in the province of santa cruz. i saw a light that had no flashes, was solid, was followed closely by a large white helicopter, both flying slowly but steadily. i saw them for more than 11 minutes at a distance of between 500 and 700 meters at a point where the route rotates towards the sw. i did not hear sounds and i did not see glows either, just the distant transit of the two objects that did not seem to fit the landscape. the wind was blowing from the w so i did not hear the helicopter either, but i saw it clearly because the day was clear.