Circlestone is usually done as a side trip when camping at Reavis Ranch. The trail isn't signed--watch for cairns on the east-west Fireline trail. If you start descending into Pine creek you've gone too far (as in the three right-most yellow dots). Mound Mountain at the bottom center is the highest point in the Superstitions. The start of the trail is about 400 feet in elevation above Reavis Ranch. The ruin is another 500 feet higher.