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Major Matthews collection British Columbia Electric Railway Company
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Buntzen-Coquitlam hydro-electric development - Key map

Photograph negative is a copy of a technical drawing showing profiles of hydraulic tunnels for the Coquitlam Dam and the Buntzen Lake Power Plant number two; and of a map showing the Lower Mainland area. Negative was created in order to produce lantern slides of the two images.

Coquitlam Dam

Photograph negative is a copy of a cross section diagram of the dam, showing: rock fill in upstream and downstream toes; location of original dam buried in new structure; and the equivalent cross section of a concrete dam. Negative was created in order to produce a lantern slide of the image.

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