Yes, passes are good for a week. $15 for a car and passengers, $10 for a motorcycle and riders, $5 for a bicycle or someone on foot.
I hiked several trails that didn't mention having an entry fee.
Yes. Both the East and the West parks are National Parks. If you don't have a National Park Service pass, you'll need to buy one.
Yes. It's the standard USFS fees
There are many trail heads you can access without obtaining admission.
Its free some of the time... If you get there before 6 a.m.
At the visitors center
The visitor center (has lots of great information and a lovely gift shop!) has no entrance fee, but it cost $15 per vehicle to drive through the park! Worth every penny!!!
You can pay at the visitor's center
Yes
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