This is superb singletrack that is almost completely rideable. Loose rocks are absent but bedrock ledges and curbs are plentiful so ride with caution especially on the way down. The strong cross-slope typical of the area will punish inattention.
Access: The Picketpost parking area is open from dawn to dusk only. There are informal camp spots between Hwy 60 and the trailhead, on the north side of the access road.
From the trailhead the trail follows the AZT - Passage 17 - Alamo Canyon to the south, with Picketpost Mountain looming to the east. It's a steady climb with a few rocky and off-camber sections.
Leaving Alamo Canyon about 11.5 miles into this ride, you'll transition to AZT - Passage 16 - Gila River Canyons. On your way, you'll contour upwards amid the saguaros with some smooth sections. The trail is very well designed and maintained, so almost everything is rideable.
After crossing Telegraph Canyon and riding through tiny green oases, the trail ascends to two passes marking the high points of this section. From the end point, turn around to enjoy some more rolling terrain, back the way you came, to return to the trailhead.
Another ride to the south, if you'd like to continue is the AZT - Kelvin to Red Mountain