I have several mineral sites I use for inventorying my bucks. I get lots of pics from early July till the end of September. Once October rolls around it slows till mid to late December. I use trophy rocks and I really like them. They last 3 months or so and the deer use em heavily. I will caution anyone using minerals to be careful with site locations. After time, deer will eat the browse in the surrounding areas of the site thus making the area really open. I have actually ruined a good tree stand site because the mature bucks don't feel comfortable traveling to my site during daylight hours.