Curlew National Grasslands is a tiny area near Snowville, UT.  We were looking for a quiet place for an "overnight/passing through the area" spot.  Easy to reach with only 1/2 mile at most gravel.  Our experience was on a Tuesday.  NO ONE ELSE was camped there except the campground host who was camped in what we thought was the day area.  Covered picnic tables, fire rings, clean outhouses and flat sites.