The Mine Area was one of the first to be developed for sport climbing out at Queen Creek. Routes are sort of a mixed bag from pocketed to edgey. There are lots of moderates around the Mine Area which makes it popular for climbers.
The general Mine Area consists of a few different clusters of formations with the main areas being Upper Looner Land, Lower Looner Land, The Magma Gardens, The Arena, and Apache Leap.
Drive up the road out of Superior, go through the tunnel for another mile and a half to a sign that marks the turnoff to Oak Flat Campground. Turn right and follow this paved road as it weaves up to the Magma Mine (probably some other name nowadays). About a hundred yards short of the actual mine entrance on the left, there's a small parking lot just off the road.
To get to the Mine Area, hike the dirt road that heads generally south out of the parking lot. This will go south and then curve back to the west. Continue west up the wash and that will put you in Lower Looner Land. Upper Looner Land is basically a few hundred yards west and a bit north of the westernmost Lower Looner formations.
Mountain Project's determination of some of the classic, most popular, highest rated routes for The Mine Area: