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AZ 366 Shield

AZ 366

State Route 366 is a winding mountain road that provides access to the peak of Mount Graham from US 191.

Length: 28.3 miles
Existed since: 1960
Current Route: Mount Graham to US 191 at Swift Trail Junction
Major Junctions: US 191

Cool Features

SR 366 is designated as the Swift Trail Parkway.

Page last updated: 2/25/2022