10 Biggest Fires in US History

6. Chinchaga Fire – 1950

4,200,000 acres of land was under the fire in Chinchaga River area in 1950. This fire was left to burn freely, to clear the land for the new settlements in the region. Over 3,500,000 acres of forest burned in the territory of Alberta and British Columbia. The interesting fact about this event – the huge amounts of smoke in the upper atmosphere made some interesting shapes in the sky that could have be seen across the entire America. An interesting fact about this event – there were some reporting of “blue moons and suns in the sky” by the people across the state who were not aware of the events in Chinchaga area.