Great Michigan Fire loss, animal deaths, and forest devastation has never been determined. Also unknown is the total number of human deaths. Some estimates put the loss of life at fewer than 500, but they were largely based on families reporting their members missing. In 1871 in Michigan there were hundreds to thousands of lumberjacks and salesmen spread out across the state, along with settlers in remote areas, making it impossible to total the loss. Because these fires happened in the day other estimates of the Great Michigan Fire death toll is lower than the Great Chicago Fire's estimated 250-300 dead. One speculation,
Great Michigan Fire was burned over by the Thumb Fire, which followed part of the same path of the 1871 fires. In the mid-1830s logging began in Michigan and grew into a significant industry. Michigan was extensively logged for the Eastern white pine, measuring tall and exceeding in diameter, along with the hardwood forests. By 1854, sixteen sawmills were in operation, producing over of lumber. These operations left behind branches, bark and quantities of unused wood. The fires of October 8, 1871, started after a long dry summer. Most areas had had no rain in months, making the dried-up vegetation and logging debris,