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Dymphna
Message origin: www.TRAVEL.com
Ron
Not that I know of. There are a few places with some restrictions.
However - I would note that Zion Canyon has been closed off to most
private cars during the peak season. It's worked pretty well with a
shuttle that runs every 8-12 minutes. Of course Zion Canyon is a bit
unique in that it's extremely narrow and there aren't a whole lot of
places where one can park. I heard it was almost undriveable before
they went to the mandatory shuttle. One can visit there in a personal
vehicle during the off season. Guests at Zion Lodge can drive there
just to park at the lodge; the parking permit won't allow lodge guests
to park anywhere else. Campground patrons can drive to the
campground. Anyone with a disabled parking pass can drive and park in
Zion Canyon too. I think the only downside to the shuttle is that
early or late hikers might have problems getting into/out of the park
unless they bring bicycles or are willing to walk. I attended a
campfire program at the Watchman Campground, and I was running really
close to the shuttle deadline. However - the campground is really
close to the entrance, and I was only staying about a half mile from
the entrance.
The Hermits Rest route at Grand Canyon is close to private cars save
those with disabled passes.
Every time I hear about some proposal to force a mandatory shuttle
system in Yosemite NP, the consensus would be that it could be
unworkable since the distance is so long. It would have to be too far
away from the main sites and there would likely be people stuck in the
valley when a shuttle ends. Of course they could do something like
have round the clock shuttles with nite-owl service on the hour.
Yellowstone would be absolutely unworkable if they banned cars. The
place is just too big and I don't see them have anything other than
tour buses.