The Troll A platform is a condeep offshore natural gas platform in the Troll gas field off the west coast of Norway. It is the tallest and heaviest structure that has ever been moved to another position. The Troll platform was towed over 200 kilometers from Vats, in the northern part of Rogaland, to the Troll field, 80 kilometers north-west of Bergen. The Troll A platform has an overall height of 472...