The first diamonds here were found by Erasmus Jacobs on Colesberg Kopje by members of the "Red Cap Party" from Colesberg on the farm Vooruitzigt belonging to the De Beers brothers, in 1871. The ensuing scramble for claims led to the place being called New Rush, later renamed Kimberley in 1873.[3] From mid-July 1871[3] to 1914 up to 50,000 miners dug the hole with picks and shovels, yielding 2,720 kilograms (6,000 lb; 13,600,000 carats) of diamonds. The Big Hole has a surface of 17 hectares (42 acres) and is 463 metres (1,519 ft) wide.