Jumping Onto Dock Four The approach to Dock 4 is long demolished, so it is only accessible when the lake freezes. Related Similar Images ...based on the tags: catwalks, demolition, frankie, lake-superior, people, pilings, sunsets... Eric Looking out of the top of the grain tower at Duluth. The old movie theatre sign was sitting right inside the sealed front doors. All electrical rooms were surrounded by walls, for obvious reasons. Now all the walls are gone, for reasons less obvious. I wonder what this guy is thinking, walking through the complex. Prize Mine has been the victim of erosion. Its north wall is pushed in by rockfall and its south side is far from ground level. This sign was important when trains ran the length of the elevator. The glow from the city is bright enough to read by. Aaron by the concentrator.