Yes it's dangerous. The cliffs are what makes the good pulls. During a good snow year, just about every hill will slide atleast once. But the thing to look at for is the sink holes. You can make a great climb, or come off what you think is a little roller, and drop into a huge hole. Some that you will never get your sled out of, and maybe not you.
You will have to catch the trail right after the groomer, because after a couple days, the road is tore up.
For the most part, those who ride Tony's ride it because they like to climb. If highmarking is your game its a great place. The problem is that its a small area. So after a day or two after a storm, its tore up pretty good.
Oh, and that rock picture.......owww. You are suppose to go up and around that cliff, not over it........