You should call. Transporting your own is still $10. If you do the 12 or 18 you have to be at the location early. They should be opening the 12 mile this weekend the 18 later because they have to go up river and clear jams.
Last year a transport was $10. Distance wise I think the longest would be 18 overall if you strung the 12 and 6 mile trips together. As far as I know, yes you can take the 12 mile, camp then continue the next day. Probably better to call the place though.
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