Yes bush wackers has moved out to sun valley speedway. Where your talking about is hartnell rd there is endless trails and lakes up there.Another access to that area is noble canyon fsr off hwy#6 in lavington.
We have both xp850-eps and xp550-eps and are very impressed with both.They are bigger machines then other quads but dont feel that big when blasting down the trail.The eps is an awsome feature to have the steering doesnt yank you around as much as some other quads do.