For a couple of years now - ever since I read a trip report from Mike @mk5 - I've wanted to drive the Bradshaw Trail. Located in the southern California region of the Sonoran Desert, it traverses some 85 miles of desert - from the Salton Sea to the Colorado River and the La Paz region of Arizona. The Bradshaw Trail itself though, isn't the highlight of and adventure like this. In fact, the original route that those seeking gold in La Paz travelled is - today - a wide gravel road. Sometimes* well graded, it purposefully picks follows the…