But the danger isn’t limited to the climb. From the massive “stroad” intersections of the West Valley to the sudden blindness of a dust storm on I-10, here are the red zones you need to watch out for in 2026.
1. The “Black Canyon” Gauntlet: I-17 (Phoenix to Flagstaff)
This is arguably the most stressed highway in the Southwest.
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- The Danger Zone: The stretch from Black Canyon City to Sunset Point.
- The Design: It is a steep, winding ascent with limited shoulders and…