Sometimes on the Thruway I'm so bored I forget where I am. Did I pass Saugerties? Did I pass Poughkeepsie? The decaying green bunker looking building south of Kingston has been a reliable landmark since I was a little kid.
Of trails still open, patrolled etc. the one that comes to mind first for me is East Bowl at Burke
There's one at Saddleback too but I haven't been on it, too cold to run that lift whenever I was there so didn't venture out there. I think it's called Muleskinner or something like that
Edit: on the trail map the adjacent area is shown as a glade, so not sure this one counts?