It looks like 4670 would get you there. If you prefer to hike, there's a trail that takes off of the Burnt Granite trail and goes down to Tarzan Springs. Getting to the north trailhead of the Burnt Granite trail is more difficult than it used to be since 4650 is closed. I've heard that more tread on the north end of the Burnt Granite trail has been located.

Does anyone know of a current district map that shows which roads are actually passable?