Hiking or biking this area gives you the feel of being way outside Phoenix, even though it is 8 minutes from the Arizona Biltmore Resort. In effect, you are climbing the north side of Squaw/Piestewa Peak, and the views are more of nature than of downtown.
This is a wonderful natural area that the locals use while the tourists climb Squaw/Piestewa Peak from the south like lemmings.
The dreamy name comes from the old days of mining mercury here, which if you were a miner might produce a toxic effect. The miners were spaced out, or as if they'd been on drugs, kind of dreamy. Now it is safe from mercury, but not from dehydration, so bring some drinking water.