At least the boat ramp is paved as I recall. Sorry you ended up there, as it's an okay spot for launching a boat and camping if the other spots are full, but it's rare I've ever had to resort to camping on the flat sagebrush plains. The campgrounds on the upper end of the reservoir aren't very scenic in general.
That said, there are a lot of great campgrounds here in Utah that involve a fair bit of travel down dirt roads. The one we've got reservations to next involves about 17 miles of dirt road each way. I find it makes my absorption refrigerator seem to work better. Is your refrigerator a residential type? I also found the rough roads do wonders for cleaning out my black tank. I do find however I have to go through everything and check screws etc for tightness every now and then. Locktight is your friend, as is a tailgate seal kit for the pickup if you have a cover on it
2015 Ram 3500 Laramie CTD, 4X4, AISIN, B&W Companion Puck Mount
2016 Heartland Bighorn 3270RS, 1kw solar with Trimetric and dual SC2030, 600 watt and 2k inverters.