The owner/host who answered was very friendly. We called for day of arrival, and a 730pm arrival was accommodated by giving us the site number over the phone. I googled the park and called that number without issue. Yes, there is a gas station right out front, which worked well for us to fuel up prior to hooking up and leaving.
We stayed here while visiting Jackson Hole and the Grand Tetons last minute in June. It was a BEAUTIFUL drive along the Snake River, however twice there were car accidents that backed up traffic for hours and due to the remote location there was no convenient rerouting. This is no fault obviously of the park, just pointing out to be aware of this and consider staying in town if GPS shows a backup!
The mountain photos on Google were not from the actual park it seems. The views from the park were not what we expected, but again, we were just looking for a safe spot with hookups for our impromptu stop.
Full hookup without issue, site big enough for our 39' RV and truck. Grassy area for pets, not mowed. Very quiet. Did not see any fire pits, but we were not spending time hanging out at the park. A picnic table at our site was nice to have.
No service for about 45min driving in from Jackson, but we had Verizon service at the park.
Overall, we would stay again for a quick stay.