Demolished Duluth Works, Brick 2 Bricks from the demolished buildings. Similar Images ...based on the tags: rocks... Below Grand Army Mine is Gold Collar. A ‘collar’ is the braced section around the portal of a mine shaft. After climbing the elevator shaft to the illusive second level, a new pallet of colors were revealed. Chester Creek Infall, near Duluth’s old Armory. The creek will not emerge again until it is near the Lakewalk. A rusting disconnect gangway. The smokestack is for a boiler, if I recall. The dredge is divided into four levels. The top level has controls for the tailings boom and, when it was there, the bucket excavator. Taken from under the headframe. The last tailings on a broken conveyor belt. An abandoned ranch on the east side of the tracks. This was not the Colmor Cutoff they were waiting for. Like a railgun pointed at the Rockies… the boom would direct tailings–junk rock–outside of the dredge pond.