Here is some info on HC -
Halls Crossing (435)684-7000
* Store open 8:00 am - 6:00 pm (7:00 pm when ferry is running)
* Gas and diesel available only when store is open
* Camping is $18/site, Reservations accepted at Halls. First-come-first-served at NPS Campground.
* Showers, hot water, and flush toilets at Halls and at NPS Campground
* Showers w/o camping for $2.00 at Halls Campground (not NPS Campground)
* Full RV Hookups at Halls; no electricity at NPS Campground
Cal Black Airport (435)684-2419
* Gas available 24x7. Premium (87 octane) only.
* No diesel
Looks like there is gas 24/7 at the Airport not at HC. When we pre-ran the trail in March we all filled up at HC. I would call the Airport to verify.
There will be Tech Inspection at HC on Tuesday night. There will also be a TI at the Trailhead at 6 AM Wed. morning.