Yukon is a territory in Canada. It is bordered by the Northwest Territories to the east, British Columbia to the south, and the U.S. state of Alaska to the south and west. It has a small coast on the Arctic Ocean. It became a territory of Canada in 1898, when it split from the Northwest Territories, due to the population shifts caused by the Klondike Gold Rush in the vicinity of Dawson City.
By 1931, gold had been discovered in the Yukon, a region of United States-occupied Canada. It was thought there might also be gold in nearby Alaska, but the Russians had never let anyone excavate there.