I've tried all sorts of soil, sand, (the worst) regular dirt,(tolerable) clay based, (the best). But having a low spot that collects water is a plus in order to melt the mineral brick. I'm not talking salt blocks, what I have used are the house brick sized red mineral bricks sold at livestock stores. It must soak into the clay. One can see where the deer shave the sides down with their hooves and must eat what they have shaved. In one place there was a small water hole, maybe 4 or 5 ft. across, and maybe 6" deep. I would put 2 min. bricks in it. I had a doe that used to come there regularly and drink forever. She really seemed to enjoy those drinks.
As far as shed hunting goes, I'm up to 35. Some good pairs and a lot of small ones. Should have found more but I was sick and lost 3 weeks time. I had a tick related disease (not Lyme disease) that got into my blood steam and caused all kinds of problems. I'm just about back to my normal self.
I found something most interesting with the sheds this year. I occasionally get sheds from the same deer from one year to the next, and this year, all those antlers were smaller than last years. These are mature bucks and not that old to be regressing because of age. I believe the reason to be the results of last years early hot and very dry summer. I believe this weather shortened the in velvet growing time. I have heard from someone somewhere that last year was not a good year for antler growth in the Midwest.
Anyway, watch those ticks and use things like OFF and spray yourself when out. And check yourself when the day is done at home. After what I went through I will be more diligent in checking myself. Don't want to go through that again, and if you knew, you wouldn't either.
never say never
patience is the companion of wisdom