Twelve years ago, 19 wildland firefighters perished while battling the Yarnell Hill Fire outside of Prescott in northern Arizona. The big picture: It was the largest loss of life among U.S.

A special dedication ceremony is happening to mark 12 years since this tragedy at the Yarnell Hill Fire Memorial Park.

Nineteen Granite Mountain Hotshots died fighting the Yarnell Hill Fire 12 years ago on June 30, 2013. Here's how to honor them.

Monday marks the 12th anniversary since 19 Granite Mountain Hotshots were killed while fighting the Yarnell Hill Fire. Only one person of the 20-man crew survived, having been separated from the team ...

Another sign shows the timeline of the Yarnell Hill Fire and a photo of the aftermath in July 2013, days after the Granite Mountain Hotshots lost their lives.

Two journalists with 3TV look back on getting to the Yarnell Hill Fire and hearing on the radio the Granite Mountain Hotshots were lost.

Nineteen had perished at the Yarnell Hill Fire, trapped by flames that moved so quickly several of them had not even deployed their fire shelters. The grief began there, and spread through the ...

A 9-foot photo at the Yarnell Hill Fire Memorial Park shows the Granite Mountain Hotshots posing in a human pyramid. Fourteen of the firefighters were in their 20s.

Arizona city Prescott and neighboring town Yarnell will hold public events Friday to mark 10 years since 19 firefighters died while battling the Yarnell Hill Fire.

A fire historian says the Yarnell Hill Fire shows us how we should rethink our vision of land and fire management.

Nineteen Granite Mountain Hotshots died fighting the Yarnell Hill Fire 12 years ago on June 30, 2013. Here's how to honor them.

Nineteen Granite Mountain Hotshots died fighting the Yarnell Hill Fire 12 years ago on June 30, 2013. Here's how to honor them.