Osborn HDR The Osborn Block is the prettiest building you’ve never seen in the Twin Ports. Similar Images ...based on the tags: bricked-windows, cables, ladders, neon-signs, overhangs, power, silos... A shuttered house at the end of the block doesn’t even have boards on it anymore. Identical warehouses seem a little newer than the rest of the plant. I suspect these were added in the mid-1950s for the Korean War, during which about 200 buildings were added to the complex. For some time, Purina ran a feed service out of the elevator. Inside and outside were signs of its past presence. The power lines follow the street, down to the mineshaft. Everything revolved around the mine, it seemed. Ringling, MT is spread thin across the grassy land. Mammoth Mine overlooks Central City from atop Mammoth Hill. In the distance you can make out Coeur d’Alene Mine (red), which operated from 1885 through 1940. Old boathouses near the dock. The fantastic red elevator that is Pool #61, built 1928. Taken from under the headframe.