RE: deer cocaine??
if your just looking to set up a camera and get some pictures then go to home depot or walmart and buy a 40 lb. bag of water treatment solar salt. its lke 4$ a bag and will do the trick. just clear out the brush in a 5foot circle and throw it on the ground. some like to dig a hole or mix it up with the soil but the deer will do that for you. it is not too late as deer will use it most likely till the end of the summer. if your looking to grow antlers or improve the health of the deer the recipes mentioned might be better but i believe its more genectics when it comes to minerals.