Don Valley Brick Works

The Don Valley Brick Works (often referred to as the Evergreen Brick Works) is a former quarry and industrial site located in the Don River valley in Toronto, Ontario, Canada. The Don Valley Brick Works operated for nearly 100 years and provided bricks used to construct many well-known Toronto landmarks, such as Casa Loma, Osgoode Hall, Massey Hall, and the Ontario Legislature. Since the closure of the original factory, the quarry has been converted into a city park which includes a series of naturalized ponds, while the buildings have been restored and opened as an environmentally focused community and cultural centre by Evergreen, a national charity dedicated to restoring nature in urban environments.

The Don Valley Brick Works were created in 1889 by the Taylor brothers. John Taylor and his brothers, William and George, had purchased the site in the Don Valley in the 1830s where they established a paper mill. While digging post holes to make a fence, William came across some good quality clay. He took a sample to a local brick works where it was confirmed that it would make a high quality brick. A quarry was soon established at the north end of the site and a brick making plant was built at the south end of the property near the Don River.

The Don Valley Pressed Brick Company produced bricks using three techniques. The first was called a soft-mud process. Clay quarried from the site was mixed with water from nearby Mud Creek, placed in moulds which were dried and then baked in kilns. A second technique called dry-press bricks used quarried shale. The shale was placed into moulds and machine pressed. A third process called stiff-mud used a mixture of clay and shale that used less water than the soft-mud process. A column of clay was forced through a die which was then cut to form using a wire. Finished product was shipped by cart out of the valley along Pottery Road or by rail on a spur built into the yard. Bricks were used mostly in Toronto but were used across the continent. The bricks made were of such good quality that they won prizes at the Chicago World's Fair in 1893 and the Toronto Industrial Fair in 1894.

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