One of best hunting spots has gone dry this year due to a sinkhole that formed in one corner. It was never very deep (2-3 foot max) and was really just a low spot in the field but it almost always had water in it. After all the rain we got in the spring we came to check it and found that it was dry and that a sinkhole had formed in it. The sinkhole is roughly 6 foot in diameter and approximately 3 foot deep. My question is... could i possibly fill the hole with a foot or so of bentonite and then fill the rest in with clay or is the only way to repair it to dig it all the way to the throat? We do not own the farm but we do have permission to try and fill the hole. But I am guessing that digging a 30 foot hole in their field is more than likely out of the question. Thanks for any help guys! I'd sure love to get this hole back!