The population of Yellowknife quickly grew to 1,000 by 1940, and by 1942, five gold mines were in production in the Yellowknife region. However, by 1944, gold production had ground to a halt as men were needed for the war effort. An exploration program at the Giant Mine property on the north end of town had suggested a sizable gold deposit in 1944. This new find resulted in a massive post-war staking rush to Yellowknife. It also resulted in new discoveries at the Con Mine, greatly extending the life of the mine. The Yellowknife townsite expanded from the Old Town waterfront, and the new townsite was established during 1945–1946. The Discovery Mine, with its own townsite, operated to the north-northeast of Yellowknife from 1950 to 1969.