Stay away from FB it's not as professional and shit can escalate out of hand to a level you don't want and they don't need. It's obvious they are behind the times.
If your main concern is the park you need to get them reading SAM Ski Area Management and there's some other site I'm brain farting on as it's 2 in the morning and I just rolled home from Octoberfest where there were some serious creatures out and about. But anyways those features in your pics are scary as fuck, that reminds me of hitting shit in the 90's. Tell them they could learn a thing or two about parks from Breckenridge which in my opinion is the greatest park on earth and completely next level, fuck you Keystone.
I'd put together an outline of concerns for them, ideas on how to rectify it, and tell them as a customer you want to help them as they have helped you blah blah blah ego stroke, jerk off, drunken gnargoyle attack, blah blah blah, fix that park.