The deer start hitting mine in mid April. They hit mine real hard in the spring and summer. Then about September when the fawns are bigger and the racks are slowing down they stop using it. In the six years hunting by my mineral site I have only seen one deer lick it during season, little button buck. Some areas talk like minerals and salt arelike candy for deer, but my area must have enough in the soil cause they don't hit it in the fall. I also never put out salt blocks. I put out a trace mineral block and then last year I started putting out a block for cows. Cant remember the name but it has more calcium and phosphorus and things that are in the deer mixes and they really liked that. But in the fall it all stops. Here is a pic of my mineral site. It may take a season for them to find it a use it hard. When they do it will give you alot of trail cam pics!!