Highlands Ranch here (East side). I went on the off-road adventure. It was fun. Got the wounds on the front bumper caps to prove it. I'm not running much of the stock suspension but others were like RckyMtnTitan said.
Every on-ramp. I've been looking around for an out of the way place to do 0-60 runs for Uprev tuning. In my area they are pretty hard to come by. I've done a few by stopping on the shoulder of the highway. That's going to keep me legal speed limit wise but I'm not real comfortable with it being safe. You never know if some bozo is going to be talking on the phone and plow into you from behind.