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but bring a hatchet and a pry bar of some sort and something to wedge it on, take your time and you'll get it out
I have always found the ice grows on top...it snows then settles and pushes water atop and than freeze another layer...your shack will always need more blocking the more snow/ice that builds. This is normal maintinence to keeping a shack in one spot and I recall jacking weekly on solid winters. Get a good ice bar and chisel away to free it now then block again...more than you think it needs. To give you an idea we used to sink a 55 gallon plastic bait barrel with a hold 1/2 way and by end of winter the ice was always near the top of the barrel...been back to the spot yet? Headed to Champlain next weekend.
I had the day off to fish for trout, but dealt with the shanty instead. She's free and off the ice like 6 inches now. Hopefully that lasts the rest of the season.