I mix one part stock salt (regular white granular salt), 1 part Dicalcium sulfate and 2 parts trace mineral salt. I can make 200 lbs (4 bags above at 50 lbs each) for around $60. From my experience, they’re only on it from Spring green up through early September. I’ve got a friend 25 mins away that keeps deer on his all year long. Not sure why there’s a difference other than his doe to buck ratio is way outta whack whereas we see a 2:1 ratio around me and we have a lot of ag in the area.

Thanks for the suggestions.

I once hunted a farm that had a small wooded building in a pasture. At some time it must have contained a lot of salt. Deer, or something, had chewed the threshold under the door to enjoy the salty flavor of the wood.