View single post by Keith Pashina
 Posted: Mon Jun 19th, 2017 08:35 am
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Keith Pashina


Joined: Sun Nov 4th, 2012
Location: Minneapolis, Minnesota USA
Posts: 781
Chris Walker and I have gone back and forth by email on this topic, and Chris also linked to an un-named Central City Shafthouse with all corrugated cladding  the mid-to late 1890's pictures (this can be dated by the Central City view showing the uncovered Armory Hall trussed roof and what may be an Union Pacific lettered boxcar in train). 
This mine building has corrugated iron siding - another image form the Denver Public Library, Western History Collection, at:
And a closeup of the same photo clearly shows the corrugated metal siding 
Chris Walker also points out that the Gregory Mill, (later the 50 Gold Mines mill), was built in 1898, mostly of corrugated iron, with the exception of the offices.
Of course, Gilpin County was not that isolated - neighboring Clear Creek County and Boulder County also had extensive mining operations. Chris Walker went to locate a "target-rich environment"  at Idaho Springs, and has identified a wealth of interesting details. An example - over at Idaho Springs, there the State Ore sampler:
This is an image from the Denver Public Library, Western History Collection, and the link to this photo of the  Idaho Springs sampler is here:

Chris Walker notes that on the Sanborn fire maps dated 1895,  and this sampler was noted to be sheathed with corrugated iron.

Continuing to delve into the Idaho Springs, Chris Walker goes on to point out that the Jackson mill was roofed with corrugated iron, and this mill was. built 1896. This is a very interesting building, and a link to the Jackson Mill discussion on the C&Sng Discussion Forum is here:
More C&Sng Discussion Forum links show the Dewey Bros. Sampling Works building was  roofed with corrugated iron as well, and this building was built prior to the 1895 Sanborn map.  The link to photos of this and discussion are at:

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