Mitchell Sugar Mill, 1920 Mitchell Sugar Mill, 1920, Colorado State Library Similar Images ...based on the tags: historical-image... A detailed map showing the property in 1886 (Sanborn Fire Insurance Co). View of the hospital in 1895 (NRHP Form). A view of the ground-level damage in the aftermath of Pool 5’s explosion. Selby Tunnel’s upper portal is filled in and ready to be paved over. Courtesy Minnesota Historical Society. A view of the school in 1967, the last year it was open. From ‘A little town lost’. A detail from a 1862 plat map of the area, showing several never-built communities and present-day ghost towns. From Denver Public Library. Looking toward town in 1920 from the school. From ‘A little town lost’. A postcard showing the East End Milling District from before the 1914 that left Daisy (rear) standing alone. A postcard of Birtle in the 1930s. From Manitoba Historical Society.