I tried to hike Tonto Narrows yesterday, but the gate is locked when I got there.
Later I found out from Charles Liu's (author of 60 Hikes within 60 Miles Phoenix) website:
As of early 2009, the trailhead for this hike is closed to public access due to recent conflicts between hikers and local ranchers. There are currently no established alternate access routes to Tonto Creek from the town of Gisela.
That is just too bad!