During the copper boom of the 1860s – mid-1870s the price of copper was as much as UK £95 per ton. Copper mining probably commenced in the Mount Clara – Mount Coora area in 1872. The Mount Clara smelter was built in 1873. The smelter was built with local rock, and sand from Fraser Island. The Mount Clara smelter was among the earliest built in Queensland, being built after Peak Downs, Mount Perry and Flanagans smelters, but a year before those at Mount Coora, Blackall Mine and the Adolphus William. An 1872 report states that of copper had been produced from of ore, giving a return of 13 percent copper/ore. Slag from the operation was drained off in to the creek and large clumps are still visible. The ore was a rich blue-green carbonate, sourced from a
Conservation and tourism
, with the help of a grant from the National Trust, undertook work to restore the historic Mount Clara Copper Smelter. The chimney was completely restored along with safety fencing, and the unpaved road was also made safer for travel. Mount Clara Chimney was registered with the National Trust of Queensland, and is on the Queensland Heritage Register. The chimney is now a key tourist attraction in the Kilkivan area. It is located off Rossmore Road, by road out of town. The National Estate citation notes that "The site is notable for the absence of modern intrusions and as a relic of early mining activity in the area."
Description
The smelter remains which were renovated by Kilkivan Shire Council in 1978, are exposed to ground level. The smelter is made of brick and stone, the walls standing to a height of at the fire-box end, and to height at the opposite end of the smelter. These heights seem to correlate with the spring-level of the now collapsed arched roof. The internal ovoid form of the reverberatory smelter can be readily seen. The fire-box is particularly well preserved and has a deep below-ground access. Iron staples are inserted into the base plinth of the smelter at regular intervals and seem to be the support points for the rail reinforcing bars which would have originally bound the smelter. The slag heap is small and contains large square sand mould slag blocks, each about. West of the smelter is an area of brick rubble and vitrified brick. This seems to be the dump spot where rubble removed from the smelter in 1978 was tipped. A chain wire fence was placed around the smelter and chimney in 1978 which prevents close access to the remains.
The chimney
The chimney is thought to be the oldest surviving mining industry chimney in Queensland, also being among the first built. It stands about high, although early descriptions reported a height of. It was constructed from local bluestone, clamped with iron, and held together with a lime and sand mortar. Firebricks lining the furnace and chimney were made from good quality local fireclay. The chimney stands close to the smelter and the entry point of the smelter flue, now collapsed, can be clearly seen at about up the western face of the chimney.
The ore from the mine was taken from a shaft dug into the mountain approximately away. The mine has an arched roof and no uprights, and is believed to mimic the style used by miners from Cornwall. The mine entrance was rediscovered and opened in the 1980s and some more exploratory work was done intermittently over the next several years, although no commercial operations ever took place. It has since been resealed for safety. The mine itself is situated on private property and is not included in the heritage register boundary.
Heritage listing
Mount Clara smelter was listed on the Queensland Heritage Register on 21 October 1992 having satisfied the following criteria. The place is important in demonstrating the evolution or pattern of Queensland's history. Together with the small number of well-preserved 1870s smelters the Mount Clara smelter is important in demonstrating the evolution of base metal mining in Queensland. The place demonstrates rare, uncommon or endangered aspects of Queensland's cultural heritage. Smelters of this age and good state of preservation are rare aspects of Queensland's history. The smelter chimney is perhaps the oldest surviving mining industry chimney in Queensland. The place has potential to yield information that will contribute to an understanding of Queensland's history. The site may also contain evidence that provides information contributing to the understanding of that period and of early mining in the Maryborough district.
