The Brief Combined, the wildfires burning in northern Minnesota and Canada span around 77,454 acres with around 1,127 personnel fighting the fires. Fire activity should stay at a minimum over the next few days due to rainfall and moderate humidity levels. Wildfire activity is reduced across northern Minnesota and Canada as weather makes firefighting more manageable. One of the largest fires, the Little Knife Fire , is estimated at 4,958 acres, spanning from northwestern Ontario to northern Minnesota. Bear Trap and Dark Fires combined: Approximately 37,837 total acres (29,767 acres in the United States) and 38% contained.