The Mill Mountain Trail runs between the Cheney public access on Withington Creek Road and a BLM ATV road above Mulkey Creek.
This central portion of trail is most commonly ridden as part of the Rippey Spring Loop
There are some great sections of singletrack along its entire length. The Rippey portion does briefly follow and cross two-track in a few places. Look for cairns and 4x4 posts marking the trickier navigation points and the open cow grazing areas.