Is it safe to go skiing/boarding alone at Jackson? Itll be my first time there; and I consider myself advanced.
If you consider yourself advanced, then I am not sure why there are concerns about riding in-bounds at a major ski resort?
Yes, it safe. You won't be throwing yourself over any ledges unless you are reckless, dumb *and blind all at once. You'll probably injure yourself worse at the park than on most of the slopes there.
What kind of hazards are you worried about? Moose do trot out onto the slopes every now and again. Try not to spray them with snow and they'll generally leave you alone ;-)
Read on another forum: "If someone held a gun to my head and said, "You have to move to Salida tomorrow", I'd probably do it. If they told me I had to go to Breckenridge instead, I think I'd just let them pull the trigger."