Decommissioned Nike Base (HAER-Library of Congress)

Peavey, August 6th, 1990 (LaFontaine Collection)

Frontenac Miners, loading a car on the Gilpin Tram.

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

Bayard Sugar Mill, Colorado State Library

Occidental Demolition, September 1998 (LaFontaine Collection)

The Frontenac workings, as mapped in 1912 for a company report, sent to London. Special thanks to Mark Baldwin, who posted these on his website.

Looking toward town in 1920 from the school. From ‘A little town lost’.

In the last years of the Builder’s Supply Company, which occupied the Twohy from the 1960s to the 1980s. Photo taken in 1983 as part of the Superior Intensive Survey.

Air purifier and staircase at a similar base. From Library of Congress, Prints and Photographs Division, Historic American Engineering Record [HAER MN-100-68]