From 1870 to 1910 the prosperity of the copper and iron mining, lumbering, and shipping industries of the Lake Superior region created a demand for more substantial buildings. In satisfying this demand, architects, builders, and clients preferred local red sandstone. They found this stone beautiful, colorful, carvable, durable, and fireproof. Because it was extracted easily in large blocks and shipped cheaply by water, it was economical. The red...