Two winters ago we had a bunch in a circle of corn stalks. Forecast got nasty and the director called a neighbor across the road about an 80 with trees just over the fence. He and I spent the next day in the fog fencing, must of put 500 staples in. Swam a single barb wire across a slough on the uphill end. Wound up feeding there til calving. Took a chainsaw twice a week to keep the ice where you could chop it. When it had been turbo cold for about 10 days the cows quit worrying about my axe. I found a clear hole in the ice about 2 feet across. Just upstream was an ice bridge that looked a foot thick. Never tried it with the bale bed, but sure held a 4 wheeler and a lot of heavy cows. Best thing about my whole winter. I would guess it ran 40 gallons, but I bet that's low, because I never broke ice on it above minus 10. Water just boiled up there then went on down and heaved ice.