A wildfire that killed three firefighters along the Colorado-Utah border is one of the deadliest for firefighters since an Arizona wildfire 13 years ago.
The Yarnell Hill Fire that killed 19 firefighters on June 30, 2013, remains the deadliest event on record for U.S. firefighters since the Sept. 11, 2001, attacks and the deadliest for U.S. wildland firefighters in over a century.
