There are hundreds of brush piles in Clinton. Most of them were put in before GPS was popular. Those are the piles that you just have to look for and mark them when you find them. Only in the last few years have they listed coordinates for any of the piles or cubes they put in. The best piles are the ones you find on your own that others may not know about.
From what I know, they typically drop cedar trees from around the lake. I know at times they used to drop christmas trees early in the year but I do not know if they still do that or not.