Soapstone is a beautiful campground with private sites and a nice creek running through it. We stayed in site 32, which was right up against 150. Still had a great view. If possible, I would recommend staying on the side closer to the Provo River, but we still really enjoyed our site despite the road. If you are coming from the east, I would highly recommend NOT taking 37, as per Google's recommendations, unless you have a truck. Our little car struggled with 10+ miles of mountain and gravel. 150 was great in late June, and I would recommend going the 20 or so minutes out of the way simply for a better road. Highlight of our time at Soapstone was a moose walking right through our site upon packing up in the morning. So cool!