Date:   10/4/2010 12:13:28 PM ( 14 y ago)
Hits:   1,844
URL:   https://www.curezone.org/forums/fm.asp?i=1701312

They used rocks found in the area, which would have been a big job. Many of the old stone houses, were built by Italian stone mason's that came to this area in the 1800's for mining.

They built these charcoal kilns, and cut wood.

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The charcoal kilns were built in the mid-1870’s. They were situated where they were because of two reasons: a nearby outcrop of rhyolitic tuff and a source of wood, for there is a lot of scrub cedar and pine.

Skilled stone masons took rocks from the outcroppings, dressed them, and joined them with mud and lime mortar to form the beehive-shaped ovens. I was particularly interested in the keystone arch that formed the door.

Swiss and Italian woodcutters who knew the charcoal making process brought these skills from Europe. They cut five-foot lengths of wood and stacked them in two vertical tiers (totaling 50 cords) in the ovens. Then they were lit, the door was closed, the vent at the top was plugged, and air flow was regulated through holes around the base of the kiln.

It took 30 days to complete the combustion of the stack. The resultant charcoal was allowed to cool, and on a calm day, the kiln was opened. If it wasn’t done correctly, the charcoal could catch fire and burn up, destroying all the work of chopping, loading and burning.

Each cord of wood would produce about 30 bushels of charcoal which was enough to smelt one ton of silver ore.

The kilns are in pretty good repair. Inside they smell strongly of smoke, even after all these years.


 

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