The aftermath of the the explosion of the Saskatchewan Wheat Pool #4A headhouse.

Spinning floor. Courtesy Mr. Lowell Gray, a reader.

Harbor Scene (Gallagher, Duluth Public Library)

Old Crow Complex, 1910 (Kentucky Historical Society)

1911 Ogilvies, Archives of Manatoba

Starch Works (far center) & International Truck (left), 1910s?

Two miners use hydraulic hammers to fill a waiting cart.

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.

A view of Rogers Mine after its shops opened in 1913. Sanborn Fire Insurance Company.

Navy Supply Barrel, 1940s (Kentucky Historical Society)