It's open now certain views where closed out 2 weeks ago. I would call first to confirm.
You can go all the way to the top and only a couple of Lookouts are closed near the bottom
That I know I know they open early in the morning and close the gate sometime like around 7:00 p.m. but you can probably go online check in see the schedule
You can go to the top. You can also hike.
Thanks! Your answer is awaiting moderation.