Minerals play an important role in managing and growing whitetails. Minerals like BioRock or Full Draw Block https://www.walmart.com/ip/Mossy-Oak-BioLogic-Full-Draw-Deer-Attractant-Block/490478501 are always beneficial for deer, but the most activity around minerals is in late winter through the beginning spring when deer are trying to put on weight and recover from the winter. Late summer is also a great time for minerals as the bucks are finishing out their racks. It’s best to keep your mineral sites stocked from about February through July.