Main Building

Bayard Sugar Mill, Colorado State Library

Postcard from 1915 showing the plant. Published by the local drug store!

The rise of the power plant. (Source: Life Magazine)

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.

1952 Explosion. Taken from Eastern Elevator (now Richardson) looking over the ruined copula of Saskatchewan Pool 4B. Noticed the scorched face of 4A, which appears to still be smoking when this was taken!

Delivery Wagon, 1890, HE2.3r27, MNHS.org

Drivers for the Hercules Powder Company. Kansas Historical Society ( FK2.D4 .3 Ma.Sun *2) http://www.kansasmemory.org/item/210946

Fallout shelter and escape ladder at a similar base. From Library of Congress, Prints and Photographs Division, Historic American Engineering Record [HAER MN-100-70]

A scale model of a Nike base in Rhode Island, as seen in 1961. From Library of Congress HAER RI,4-FOST,1–8