It consists of the eastern part of the Territorial District of Thunder Bay including the northern part of the city of Thunder Bay, Ontario.

The current Member of Provincial Parliament for this riding is Lise Vaugeois from the Ontario New Democratic Party.

In 2005, legislation was passed by the Legislature to divide Ontario into 107 electoral districts, beginning with the next provincial election in 2007.

The eleven northern electoral districts are those defined for federal purposes in 1996, based on the 1991 census (except for a minor boundary adjustment).

Without this legislation, the number of electoral districts in northern Ontario would have been reduced from eleven to ten.