Yellowknife and town hall. The first mayor of Yellowknife was Jock McNiven. In September 1967, Yellowknife officially became the capital of the Northwest Territories. This important new status sparked what has been coined as the third boom in Yellowknife. New sub-divisions were established to house an influx of government workers. In 1978 the Soviet nuclear-powered satellite Kosmos 954 crashed to Earth near Yellowknife. There were no known casualties, although a small quantity of radioactive nuclear fuel was released into the environment, and Operation Morning Light—an attempt to retrieve it—was only partially successful. A new mining rush and fourth building boom for
Yellowknife limited to the Kam Lake and airport subdivisions. Jolliffe Island sits in Yellowknife Bay and is public land under the jurisdiction of the City of Yellowknife after a land purchase when Imperial Oil vacated the site. The island is surrounded by a community of houseboats who have been living off the grid since 1978. Their relationship with the city is complex and often strained as the houseboats are popular with sightseers, but at the same time they live outside of the city's tax jurisdiction while using city services leading to lawsuits and tensions with the City of Yellowknife. Yellowknife has