
Big Blowup of 1910 | Great Fire of 1910, Idaho & Montana
Big Blowup of 1910, devastating forest fire that torched 3 million acres (1.2 million hectares) in western Montana and northern Idaho during Aug. 20–23, 1910. Of the fire’s 85 victims, 78 were firefighters.
After record low precipitatin in April and May 1910, severe lightning storms in June ignited numerous fires in the mountainous forest region between Montana and Idaho. Throughout July the fledgling U.S. Forest Service, created by Pres. Theodore Roosevelt in 1905, employed roughly 4,000 firefighters to combat the fires. With the help of military reinforcements, the Forest Service seemed to have the situation under control, but on August 20 a dry cold front brought strong winds into the region. Winds of up to 70 miles (110 km) per hour whipped the flames into a frenzy as individual blazes united to form a massive conflagration. Balls of fire shot into the air, and firebrands fell as far as 50 miles (80 km) away. The fire spread so quickly that many firefighters were forced to seek shelter in creeks and mine shafts. On August 23, rain finally fell over the area, and the fire came under control.