Swansea Townsite is a 55 mile point-to-point trail located near Parker, AZ. The trail is good for all skill levels and primarily used for off road driving.
off road driving
Very remote. You can get here with 2wd if it hasn't rained, but I could see it getting messy if it has been wet recently. Swansea was a small mining town, and there is a walking trail through the buildings that are left; very interesting if you're interested in history/mining.