That's exactly what I bought. Mineral blocks. I got three, one for the lady who owns the land, and the two that I just got home from placing out there. One is positioned near the house where my game cam is, and the other one is in a secret location... Naw... it's out along the main deer trail in the crotch of an old blow down, where I can remove it when I set my ladder stand out. I always put my stands up two months before opening morning, so if there is anything left, I can remove it, according to the Indiana regulations... Now, I don't want this post to be a "novel" but here is what I am trying to do. The area I hunt has a creek going through it, and I hunt a narrow place in the woods. A natural funnel. There is a huge crop field behind me, and another directly in front of me (my stand) across the creek. If there is corn planted BEHIND me, the deer will always be on my side of the creek, and using that natural funnel to travel through. However, if there are beans planted behind me, and the corn is across the creek, the deer will tend to be on the other side, even during the rut... So, my intention is to try to habituate them to using this trail, no matter where the crops are rotated to... I've hunted this same little spot for a quarter century, and can easily tell you where the deer are going to be the most by looking at the crops... and of course the wind and weather have an effect too, but by and large, it depends on the crop rotation...