Great Michigan Fire a meteorite. Various aspects of the behaviors of the Chicago and Peshtigo fires attributed to extraterrestrial intervention have more mundane explanations. No external source of ignition was needed; numerous small fires were already burning in the area after a tinder-dry summer and all that was needed to generate the massive blazes in the Midwest were the winds from the front that moved in that evening. Great Michigan Fire The Great Michigan Fire was a series of simultaneous forest fires in the state of Michigan in the United States in 1871. They were possibly caused (or at least reinforced) by the
Hayden Geological Survey of 1871 correspondence was Hayden's Report No. 7 to Assistant Secretary of the Smithsonian Institution, Dr. Spencer Baird, a bit of which is excerpted below: Yellowstone Lake, WY August 8th, 1871 - Dear Professor Baird, Your letters of June 6th and July 3rd were brought us from Fort Ellis by Lt. Doane who has just arrived to take command of our escort and accompany my party the remainder of the season. ... We arrived at the banks of the Yellow Stone Lake "[sic]" July 26th [actually July 28] and pitched our camp near the point where the river leaves the Lake. Hence