That particular wallow is a "satalite" wallow. All three of them were NOT there in July, and appeared late August. 3 wallows, all about the same size, and 3 hogs to fit in them. We saw all 3 together on the hoof opening day.
Not a thick population by all means, but they do have 95,000 acres to roam. We look for bears 1st, and the hogs 2nd. We we set up some 500 yards away from those wallows on some bear sign, and yes, we did consider setting up on those tubs. I wish one of us had, cause that is the direction they came from, and they were muddy when we saw them.
I'm sure they were taking an afternoon nap while we we on stand, and came right down the stream to us for an evening bite.