![]() There were also two sluicing dams called Montgomery and Aynesley, which sluiced the terrace facing the Grey River. Argo worked the Blackball Creek from 1935 to 1942 achieving 489.8 kg of gold, with a 206% return to shareholders on the original capital invested. There was a 130% return in dividends to shareholders from the original 18 000 pounds capital invested. The Blackball company operated from 1938 to 1947 in Ford Creek achieving 15 390.8 ounces of gold. The 1930's saw larger locally owned electric powered dredges of the Blackball and Argo companies. The first was the Ford Creek Dredging Company 1900-1902, ending due to buried timber, and the inability of the dredge to reach the bottom gravels. The site had several earlier dredging operations. The dredge was operational from 1992 to 2004 across 220 hectares achieving around 55 000 ounces of gold. It is known as the Grey River or Birchfield dredge, with Birchfield purchasing the dredge in 1992 from the Grey River Gold Mining Ltd. ![]() Its new mining licence had been hard fought, opposed by conservation groups, and government departments worried about fish stocks in the Grey River.Äredging has not always been environmentally friendly in the past, although various areas have been rehabilitated back to dairy pasture, and you would be hard pressed to tell mining was once conducted on the land.Ä«irchfield is a local family owned mining business, their dredging lease at the confluence of the Grey River, with Ford and Blackball Creeks. Its been idle for several years, but as of 2017 when this was written was for sale. Said to be the last bucket ladder operational gold dredge in the southern hemisphere. Sitting in a pond on the alluvial bearing flats by the Grey River outside Blackball, is Birchfield's World War Two era dredge.
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