The Yarnell Hill Fire was a wildfire near Yarnell, Arizona, ignited by lightning on June 28, 2013. On June 30, it overran and killed 19 City of Prescott firefighters, members of the Granite Mountain Hotshots. The wildfire was fully contained by July 10, 2013. This event resulted in the highest wildland firefighter death toll in the United States since the 1933 Griffith Park Fire killed 29 firefighters, and the highest death toll from any U.S. wildfire since the 1991 East Bay Hills fire killed 25 people. It is the sixth-deadliest American firefighter disaster overall and the deadliest wildfire ever in Arizona.

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