As far I know its legal. I have yet to see any snakes/wildlife. So if you watch out for thorns (lots of those) and holes, its pretty safe. If your coming from happy valley its the first right before the Jomax plant.(you should see cars from the road) If your coming from Deer valley/ williams, its the turnoff past the Jomax plant on the left. The dirt road is just before this electrical fence box thingy. Park with the other cars and the surrounding desert is your field. if you hear cars you've gone close to out of bounds. and the open areas on the left side is basically the edge. if you see an open stretch of land at the back, this ares ok but if you can see the bridge of Happy valley you went too far. Hope this helps