Catch a ride from a snowmobiler and rip up the backside
thats the ticket, before I sold my sled, we used to come in from the Nordic center (backside) and ride up to the resort, a couple guys I work with went up there on their sleds Thursday 2 weeks ago.
I guarantee you that if there is anyone up there working, they will try to you that you need to leave, it's private property and that they have insurance on the property. Call bullshit on them, several years back I had taken my family and a neighbors family up to Stevens to do some sledding (after the season) and have a BBQ hotdog cook out. During the drive up I thought to myself that someone would come over to try and ruin our fun, well sure as shit, my daughter and I hiked half way up daisy, only to have some ass come flying up the hill on his sled yelling at us to leave. I told him we weren't leaving, your contract with the state is over for the season, he started up with this "I have this property insured blah blah blah", so I replied "No, you have the building insured, not the land", so we aren't leaving. When he seen that I wasn't leaving, he proceeded to start up his sled and go bug the other family sledding on the Barrier run.
So what I'm getting at, dont let them give you a line of shit, go have fun