The Boulder (horse) Races were a significant event in early twentieth century goldfields region history.[3][4][5]
The town maintained its separation from Kalgoorlie until the 1980s, however even prior to that era, many surveys and studies of the towns and their areas tended to join the names.[6][7][8]
Prior to 1989, Boulder was a town, but it was merged with Kalgoorlie to form the
City of Kalgoorlie–Boulder.
The population of Boulder in 1901 was 2,936 (1850 males and 1086 females), which increased to 5,658 (3090 males and 2568 females) in 1903.[9]
At the
2006 census, Boulder had a population of 5,178.[10] This had decreased to 4,825 by the 2016 census.[11]
On 20 April 2010 Kalgoorlie-Boulder suffered a magnitude 5.0 earthquake which damaged several of the historic buildings in Boulder.[12]
Military history
During
World War II, Boulder was the location of
RAAF No.27 Inland Aircraft Fuel Depot, completed in 1942 and closed on 14 June 1944. Usually consisting of 4 tanks, 31 fuel depots were built across Australia for the storage and supply of aircraft fuel for the
RAAF and the
US Army Air Forces at a total cost of £900,000 ($1,800,000).[13]
^"Western Australia". Observer. Vol. LXVI, no. 5, 243. South Australia. 28 August 1909. p. 23. Retrieved 3 November 2018 – via National Library of Australia.