The Thumb Fire took place on September 5, 1881, in the Thumb area of Michigan in the United States.[1] The fire, which burned over a million acres (4,000 km2) in less than a day, was the consequence of drought, hurricane-force winds, heat, the after-effects of the Port Huron Fire of 1871, and the ecological damage wrought by the era's logging techniques. The blaze, also called the Great Thumb Fire, the Great Forest Fire of 1881 and the Huron Fire, killed 282 people in Sanilac, Lapeer, Tuscola and Huron counties. The damage estimate was $2,347,000[2] in 1881, equivalent to $74,100,455 when adjusted for inflation. The fire sent enough soot and ash up into the atmosphere that sunlight was partially obscured at many locations on the East Coast of the United States. In New England cities, the sky appeared yellow and projected a strange luminosity onto buildings and vegetation. Twilight appeared at 12 noon. September 6, 1881, became known as Yellow Tuesday or Yellow Day because of the ominous nature of this atmospheric event.[3]