Hooks and Shadows I believe these hooks were meant for hanging filters to dry. Similar Images ...based on the tags: black&white, catwalks, hooks, rusty, shadows... The corner of the elevator… lumber armored with steel for fireproofing and water resistance. Exploring Dock 4 was a very different experience, since it was almost all metal. Most of the control panels were faceless. No doubt, they were parted out to keep other sugar mills alive. San Luis may not be a ghost town, but it’s aspiring by all indications. Luckily, it’s close enough to Cuba, NM to hang onto life, unlike the other ghost towns down the road. “GREETING FROM BEAUTIFUL GARY–WISH YOU WERE HERE!” My postcard shot. In the grungy control room, I found a little slice that was never graffitied. This sea leg was installed to unload grain boats. It’s pretty much a big bucket elevator that can be moved and lowered into waiting boats. A washout two thirds of the way down the tram gave me a place to relax in the thin air. In the quality assurance labs there is a old safe.