Whomever set this location was wrong! There is no access to the west end of the amazing Fremont Lake, and thusly, no campground. The previous reviewer is describing Boulder Lake nearby.
If your lucky, you'll get one of three epic campsites right on the river at the end of a mile gravel logging road. The road is rough, but has room at the end for a boat ramp, campsites, toilet and an overflow camping field that can accommodate several low fuss campers. Look for the sign "Blair Flats" for access.