It's already in the ground vertically resting on about a foot of 57 rock. Under that rock is extremely hard packed slate...almost concrete...it's not going anywhere. I agree, splitting it would have made for a bigger cellar, but the thing is huge as-is with minimum work. Concrete roof is also poured & I just need to finish the stairwell before backfilling over the whole thing. Then I am building a cedar log garden shed/solar panel structure over the entrance. Plans are for a 3KW battery system before the end of the year. This will run the well pump, 2 freezers, a fridge, the wood furnace blower and some lights completely off grid.