My son and I went out today to pull my stands out and take a look around now that there are no leaves on the trees and the corn has been cut. we were walking the edge of the cornfield and looking for trails going back in the woods. My son was going in first to see if he could fine any rubs or deer before I did. He was doing a fine job. We came up on one trail that looked wore down I look at him and said this looks to be use pretty good he said go ahead I need to tie my boot. well 20 feet in there it was a 8foot wide by 20feet deep sink hole made by a under ground spring hell that spring looked to be 3 foot or more wide tunnel. I didn't play around it long but had to take a look in and sure enough a dead deer in it. most of it was rotted. I could make out the head and shoulder it was to dark it see but it looked like the antler and been sawed or chewed off. That is the worst hole I have ever come across. I would hate the be walking along and have the earth fall in. I will have to go back out and mark it now that I know it is there. I would hate to see someone fall in it. Maybe I will take some snow fence and fence it off to keep animals out off it. I will take my camera with us this time.