Our star ain't red. It's copper!
Arizona State FlagAdopted on February 17, 1917.
The flag was designed by Colonel Charles W. Harris, Adjutant General of Arizona (1912-1918 and 1923-1928).
According to Colonel Harris, the suggestion that the state adopt a flag came originally from the members of the 1910 Arizona Rifle Team in attendance at the National Rifle Matches at Camp Perry. All of the other teams at Camp Perry flew a distinctive flag, while Arizona was without an emblem of any kind. The first flag was sewn by Nan D. Hayden.
In designing the flag, the first consideration was historical value; the second was colors. Blue and gold were the Arizona colors, and red and gold were the colors carried by the Spanish Conquistadores, headed by Coronado, in the expedition of 1540 to the Seven Cities of Cibola. From these circumstances, and from the blue of the Union Flag, were derived the blue, the red, and the gold (or yellow as the law names it) of the Arizona Flag. Since Arizona was the largest producer of copper in the nation, and the star an emblem which might be easily distinguished, the copper star found its place on the blue field. As a western state, it was thought the effect of the rays of the setting sun would be appropriate to the Arizona Flag, and in these rays the red and gold (or yellow) of the old Spanish colors of Coronado were used.
www.shgresources.com/az/symbols/flag/