in Adelaide newspapers, and the site was soon named The Monster Mine. Governor George Grey had amended land grant regulations forcing the hundred of Kooringa to be a rectangle, placing the two copper finds at opposite ends. Due to the £20,000 (sterling) price of the land it was divided in two, with each half sold to a different group and the division decided by lot. The surveyed area was named the Burra Creek Special Survey. It is , divided into two squares, 4 miles to a side. A group of wealthy capitalists (known as "the nobs") purchased the southern half of the division and a group of shopkeepers, merchants and SAMA (collectively known as "the snobs") the northern half. The Burra Burra Mine was established by the snobs in their northern selection, the Princess Royal Mine by the nobs in their southern. In 1846, just north of the division was sold to the Scottish Australian Investment Company for £5,550 where they established the Bon Accord Mine. Mining began on 29 September 1845 with the first gunpowder charge set off on the monster Burra Burra copper lode and by mid-1846, the Bon Accord Mining Company had also commenced operations. Mining Burra Burra or 'Monster Mine' Until 1860 the mine was the largest metals mine in Australia. From 1845 to 1877 the mine produced approximately 50,000 tonnes of copper. The mine was reopened as a modern open cut in 1971, operating for a decade with 24,000 tonnes of copper extracted. The mine's Adelaide operation was run by Henry Ayers, secretary of SAMA, from its opening until the 1890s. Henry Roach was chief Captain, responsible for day-to-day operations, from 1847 to 1867. The investors had put up a total of £12,320 of which £10,000 was spent purchasing the land. The first dividend was paid on 24 June 1847 and by 1 December 1847 the mine had returned total dividends of £49,280. Over the mine's 32-year life, less than 100 shareholders received £826,586 in mining dividends. All mining dividends stopped after the mine closed in 1877, with the mine area sold in 1902 and the last property of SAMA in Kooringa sold in 1914. A final dividend was paid on 5 May 1916 and SAMA was wound up and closed. Most of the copper was for sale to India as it was taking over a third of world copper supply in the mid-19th century.