Klondyke Coke Ovens, Industrial heritage site in Brassall, Queensland, Australia.

The Klondyke Coke Ovens consist of twelve brick domed structures arranged in two rows, forming part of a long mound. Each beehive-shaped chamber contained individual flues for processing coal into coke.

Coke production at Klondyke began in the 1880s, and the site saw two widely separated periods of working, several changes of ownership and names. The surviving beehive ovens were built in the 1940s; the last change of ownership and name came in 1948, when little coal remained, and production ceased in the early 1950s. The first mine on the site, opened in 1871, was the Eastwood mine, named after its owner John Eastwood.

Coke was made by shovelling coal about 0.6 metres deep into an oven, sealing the door and letting it carbonise for roughly three days before cooling and raking it out. About two tonnes of coal yielded one tonne of coke. The ovens sit in double rows, or batteries, with rubble and earth packed between them for insulation.

Access the ovens via a path from W.M. Hughes and Musgrave Streets in the area. Note that vegetation now covers parts of the site, so wear sturdy shoes and watch your footing carefully.

The ovens were charged with about 0.6 metres of coal, sealed, and left to carbonise for roughly three days; nearly two tonnes of coal yielded one tonne of coke. Water sprinkled through the door hole cooled the coke, which was then drawn out by hand with rakes.