Hundreds of firefighters continued to battle three major wildfires burning in forested mountains and desert hills across Arizona.

Crews were fighting fires in the Santa Catalina Mountains in the Coronado National Forest overlooking Tucson, in the Tonto National Forest northeast of metro Phoenix, the Apache-Sitgreaves National Forest in northeast Arizona and in the Kaibab National Forest north of the Grand Canyon.

Authorities said the human-caused Bush Fire outside of metro Phoenix was 15% contained as of Sunday after charring 273 square miles since it started June 13 in the Tonto National Forest.

The lightning-caused Bighorn Fire (80 square miles) burning in canyons and on ridges in the Santa Catalina Mountains was pushed back to 19% containment after growing by 14 square miles by Sunday. But fire officials said the blaze diminished as it reached vegetation at the base of Ventana Canyon.

Meanwhile, authorities said the lightning-caused Bringham Fire was 20% contained by Sunday after burning 31 square miles in the Apache-Sitgreaves National Forest north of Morenci. That blaze continues to burn in steep, inaccessible areas.

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