Brick

Copper Country Anatomy |

a rare brick structure in the Copper Country. This one belongs to the Atlas Powder Company, at Senter.

When mines were first built along the Keweenaw it was done with materials that could be commonly found within the Peninsula itself. The large distances separating it with the rest of the industrialized world and the lack of mass transportation routes to deliver needed supplies to its shores, the Copper Country had to make do with what it had. Before the advent of poured concrete, this meant a reliance on materials that could be manufactured locally.

pile of bricks found at Senter

One of these common materials found throughout ruins here in the Copper Country is the brick. Bricks are made from mud and can be manufactured almost anywhere. Numerous brick manufacturers were sure to have been in operation for decades, supplying bricks to local building projects via horse drawn carriage or in later years by rail. While prevalent across the region, the use of bricks in building construction seems to have been focused on a few specific applications.

One of their more common uses was in hoist building construction, specifically in the construction of the pedestals used to support the hoists themselves. At Osceola (and now North Kearsarge) they often form the “H” shape pedestals we have come to expect, usually several layers thick on all sides. Most likely the bricks were better apt to withstand heavier loads then poor rock or sandstone, as evidenced by their use as pavers in Calumet and elsewhere.

bricks laid out atop poor rock in what was once a support pedestal for a hoist at Osceola

A second use seems to be in high temperature areas, such as the lining of furnaces or smokestack flues. Brick has a high thermal reflectance, and is good at withstanding large amounts of heat. Often smokestack openings at the ground are lined with brick, usually in a classic hearth-looking alignment. The large sweeping arch found at Cole’s Creek is a prime example.

an opening into a smokestack at the North American mine, lined on the inside with bricks. (the inside of the stack itself, however, is not)

a rather impressive brick arch found at the remains of the smelter at Cole’s Creek. It once funneled smoke up into a large smokestack that once stood here

A last way brick was used in mine building construction was as a trim element in poor rock masonry. In various buildings we have found – including those at Arcadian and Quincy – bricks are often used to line window and door openings, as well as to form outside corners. The sills of windows are often lined with bricks and the classic arched window look seen along many buildings is due to a brick arch at the window’s top. As far as its use in corners of buildings, bricks were probably much easier in forming right angles then oddly shaped poor rock. (until more mastered masons found their way to the area that is)

brick accents atop windows in the Quincy Torch Lake roundhouse. Typical of many masonry buildings in and around mines here

bricks forming the corner of a structure at Arcadian. Probably much better at forming clean angles then the poor rock which surrounds it

One application we don’t find bricks used around the Keweenaw is in house construction. While within many other areas of the country can be found substantial amounts of brick houses and buildings – it never seemed to catch on here. We can count on our one hand the amount of brick houses and buildings that are to be found in the Calumet area, and even less further north on the peninsula. Some of this is sure to be related to the boom and bust nature of a mining settlement, as well as the availability of large quantities of wood.

brick manufacturers often “branded” their bricks in order to identify them in construction. The Brush brand – seen here at the Arcadian Mine – was widely used across the area.

another brand – Shephard – found here at North Kearsarge

this brick was found at the Copper Falls Mill, but the branding is unreadable after 150 years in the forest
alvin February 28, 2007

This is a little off subject with today’s post but I’m hoping someone knows the answer. As the copper mines went deeper the lodes contained less copper, and it if accepted therory thst the copper was deposited bywater perculating up from great depths then would it make more snse the deeper the lodes ran the richer in copper. In my limestone quarry the deeper you go the better the stone. I realize that limeston and amyglaloid are apples to oranges but I think the closer to the copper source the more copper.

explorer February 28, 2007

Alvin – The copper probably does get more rich as you go deeper, except the unique Keweenaw geology means that “deeper” in a mine means moving laterally along the lode, not deeper into it. The copper was laid out horizontally within volcanic flows. These layers were then smashed in the middle much like a bowl, turning up the edges. This meant that the flat layer of copper is turned up vertically on the edges of the bowl – specifically along the Keweenaw. The mines simply followed that upturned edge.

Check out this page on the Keweenaw geology, it should give you a clearer look at what I’m trying to say…