Esco has a large operation in NW Portland, I have no idea what the scope of their operation is here but their compound is about eight square block and the air is heavy with the smell of molten steel. This appears to be one of their stock yards and even after dark their operations continue. I like the light and shadow in this picture, the obvious brightness indoors compared to the darkness outdoors. The shadows and reflections add visual interest as well.
Canon 1D Mark IV, Canon 16-35/f2.8L Mark II
35mm, f5.6, merged layers of 1/2 and 2 sec @ 400 ISO