Yukon is one of the three regions/territories in Canada, located in the northwest of Canada. Yukon is named after the Yukon River flowing through the region, as the name means "big river" in Gwichʼin language. On June 13, 1898, Yukon officially joined the Canadian Federation, and 70% of its people lived in Whitehorse, the capital of Yukon. Yukon is known for its rich minerals; since the rise of the gold rush in the late 19th century, Yukon's mining industry has developed rapidly and became a major pillar of the local economy. The minerals in Yukon are mainly gold, silver, copper, lead and other metals. Hydro power from the Yukon River also serves as another major source of economic income.