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Arizona has more than 2,000 historical markers. Take a closer look at a few of them

car zooming on a road with phoenix spelled out on a  mountain in the background in rocks and a green one the road in arizona sign in the left bottom corner

Stations across the state are profiling notable highway markers in the On the Road in Arizona series. The four-part series is a collaboration between public radio stations KJZZ, AZPM, KAWC and KNAU.

Bridget Dowd/KJZZ
Just south of the intersection of North Horne and East McKellips Road in Mesa sits the Park of the Canals. It’s one of just a few places where you can still see remnants of canals dug by the ancestral Sonoran Desert people who occupied the Salt River Valley before the time of Christ.

Library of Congress
The story behind a historical marker for Tom Mix, a legendary Western actor, just off State Highway 79, 18 miles south of Florence.

Lindsey C. Riley/KJZZ
In 1956, two passenger planes collided in midair above the Grand Canyon. It was a tragedy that left 128 people dead — and reshaped the nation’s aviation regulations.

Arizona State Parks and Trails
Before there was a United States Border Patrol, the customs service was the first line of defense along the U.S.-Mexico border. Their headquarters — now designated by a historical marker — still stands.

More Arizona History