We have a had a couple failed attempts at food plots at our lease and use supplemental feed and minerals because, A). Our plots are so small, we have roughly 2 acres worth of plots for a 500 acre lease and B). we are limited to what we can and can't do to the trees(the lease company allowed us to extend 2 plots this year to get us to 2 acres and we had to beg to get that). This year, we got everything right and have food coming in all the plots. We back off supplemental feeding in the fall to just two sites so we can legally hunt(can't hunt over bait), but help keep the deer around. We figured out that if you put the mineral by a supplemental feeding station, they
don't touch it because the feed has a mineral package in it. They
will utilize it next to a food plot if it is close to where they walk in or walk out of the plot. What we usually do is to put a mineral site on a trail leading to or away from the food plots and supplemental feed stations. They
will use it every time. We have tried putting minerals next to water and they don't use it as frequently or at all for some reason, even though the deer experts say it is best so they can drink water after the mineral/salt site dries them out. They will drink water out of a mineral lick though.
I only have a 2 acre plot and a mineral site at some private ground locally, with no supplemental feed. I make a mineral product that is as low in salt as my state allows and the deer hammer it at both places. It has a higher mineral content than a lot of the other "deer" minerals on the market. There are a few products that have more minerals than what I make, but with my state mandated salt content(51% minimum), my mineral is limited to how I have to mix it. I asked a few of our Wildlife Officers about the low salt content in other mixes and they said that they didn't care, as long as there was no grain in it. I think the deer will utilize mineral sites even if you have the ground right. It just might take a little experimenting to figure out exactly where they want the site to be. For us, a trail in the woods or a trail just in the edge of the woods leading to or from a plot has been the best.
I don't care what product you put out for your deer, as long as you have one out there for them to use when they want it. High mineral, low mineral, high salt, low salt, makes no difference.
Here are 4 labels. Trophy Rock(very similar to livestock mineral blocks), Champions Choice, SweetLix and the other is what I make. I asked for vitamin testing also for the mineral I make also, but they didn't do it(kinda disappointed).
Here is the Champions Choice-
Here Trophy Rock-
Sweetlix-
Here is mine-