Mineral Bar campground is on the opposite side of the river then Pennyweight Trail. After the last campground plus about 100 yards is BLM land.

I went a 1/4 mile or so passed the campgrounds and got about a half gram in about 4 hours, It has been the best grounds that I found this summer excluding the paid adventures on claimed lands.

Just pay the 10 dollar parking and help the BLM it is like a donation to the the roads. Plus I drove my gear down to the the edge of the campgrounds, cheat when you can.