Poor Farm – Main Building A close-up of the main building, now in ruins. Source: Michigan Tech Archives (MS058-102-08-001) Related Similar Images ...based on the tags: historical-image... A car stops for a quick repair in the tunnel’s final years. Circa 1948. Courtesy Minnesota Historical Society. Frontenac Miners, loading a car on the Gilpin Tram. Driving Ford Model Ts onto waiting barges. Courtesy Ruin Raider (flickr). Construction of the lower portal of the tunnel begins. On top of the hill, another crew is working to make the job go faster. Circa 1906, courtesy Minnesota Historical Society. Delivery Truck (Source: The Black Diamond, 1911) Two miners use hydraulic hammers to fill a waiting cart. Saskatchewan Wheat Pool #4-A loading a vessel. Image credit: Thunder Bay Archives. View of the hospital in 1895 (NRHP Form). The ruined workhouse of Pool 5, after the 1945 explosion.