Port Huron Fire of 1871 as a result of the Port Huron Fire, and at least 200 from all the fires in the state. The origins of the fires are unknown, but the damage was worsened by a number of factors. Uninterrupted drought had plagued the Midwest into early October and winds were strong. When the wind increased and shifted direction, fire fighters were unable to control the flames any longer. Vast tracts of forest burned for a week in parts of Michigan and Wisconsin. Within hours, several Midwestern cities and towns were reduced to charcoal and ash. That same night, the Great Chicago Fire
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