I have used it in two different spots, once in the northern lower pennisula and another spot in the farmland thumb area. It worked very well in both areas. When I used it up north I wasn't able to hunt opening of gun season there, but guys that hunted right around that area shot 3 bucks. In both spots the deer had actually dug down into the ground. In the thumb area we have used it in the same spot for a couple years and the same thing. The hole they have there is probably 4' long 2' wide and about 4" deep. We normally treat the area in May or early June, last year we just dumped salt for soft water tanks there and dissolved some of it with water and let the rain do the rest and it seemed to work just as well.