Wildfires can burn and spread differently depending on what vegetation they burn. The two fires in northern Arizona have varied landscapes. Ponderosa pine trees grow near the North Rim of the Grand Canyon and can live for hundreds of years.

Wildfires burning at or near the Grand Canyon's North Rim are still raging as strong winds, high heat and low humidity persist.

Eight candidates will go before southern Arizona voters at the ballot box Tuesday in special congressional primaries to replace longtime Democratic U.S. Rep. Raúl Grijalva.

Walter Foxcroft, 43, was found dead inside a hyperbaric chamber at the Arizona facility he co-founded last year.

Fire activity on the North Rim of the Grand Canyon has forced the closure of several trails and campgrounds. Meanwhile, life goes on at the South Rim where tourists endured a smokey visit Monday.

Gov. Katie Hobbs and Senators Mark Kelly and Ruben Gallego are calling for an independent investigation into how federal officials managed the Dragon Bravo Fire burning on the North Rim of Grand Canyon National Park.

The smoke Tuesday morning is likely to be the most noticeable we've seen so far this year in Denver. DENVER — The Denver area could see smoke and haze on Tuesday morning from wildfires burning in northern Arizona and southern Utah. The smoke on Tuesday morning is likely to be the most noticeable we've seen so far this year in Denver.

Arizona’s Democratic senators, Mark Kelly and Ruben Gallego, are demanding answers from the Trump administration about its response to the Dragon Bravo Fire that destroyed structures at the northern r