Swift Trail Parkway (SR-366)

29 mi
Length
3
Verified stops
9,640 ft
High point
Scenic
Road type

Arizona State Route 366, the Swift Trail Parkway, climbs 28 miles from the Gila Valley floor near Safford (3,200 feet) to near the summit of Mount Graham (10,717 feet) — a gain of over 7,500 feet in one road. The highway connects with US-191 south of Safford and ascends through five distinct life zones from desert scrub to spruce-fir forest. At Turkey Flat, five consecutive hairpin turns are the road's signature feature. SR-366 is closed above Riggs Flat Lake each winter by ADOT due to snow. This sky-island climb in the Pinaleño Mountains delivers one of the largest single-road elevation gains in the American Southwest and is far less traveled than comparable Arizona climbs.

What you'll hit along the way.

Rider-verified stops, overlooks, fuel, and the corners worth knowing about — in the order you'll meet them.

Mile 0.0

Swift Trail Junction

The starting point of SR-366 where you leave US-191 and begin the climb into the Pinaleno Mountains.

Mile 15.0

Turkey Flat

A mid-route stop offering a chance to stretch and take in the open meadow surroundings before the road climbs higher.

Mile 25.0

Cunningham Campground

A forested campground near the upper end of the parkway, set among tall pines at elevation and a good turnaround point.

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