The companies’ Portland cement manufacturing plants were located at Shallow Lake to make use of the marl and clay from the bed of the adjacent Shallow Lake.
Lime and clay are essential ingredients of Portland cement. Marl contains lime, so by utilizing the material from the bed of Shallow Lake, the companies had the two of the essential ingredients for the manufacturing process.
Here is a map showing the location of Shallow Lake, Ontario:
The following photographs of the ruins of the Owen Sound Portland Cement Company factory at Shallow Lake, Ontario were taken in 2003. At the time, these ruins were on private land owned by Murray Noble, who allowed the author access to take these photographs.
The following photographs show the remains of may have been the Butchart’s house on the Shallow Lake factory site.
Notice the daffodils in the photograph above. Remains of Jennie Butchart’s garden at Shallow Lake?
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