It is big for having been able to rise several inches on its own, over just one winter. But it isn't large compared to other rocks that I levered out of the ground. Once rocks break the surface, I'm fanatic about pulling them the rest of the way out, and I'm very effective with large levers and stubbornness. Only one was both too big and too close to a large tree to pull out, so I put more dirt on top of it.
Two that I moved a couple years ago were each at least 20 times the weight of this one. It is actually easier to get such a monster up out of the ground (with just muscles and levers) than it is to move it once it is out. The super large ones were moveable only in the winter with the ground frozen, and then super slowly. The largest I ever levered out of the ground was not moveable at all and still sits where I pulled it up.
By contrast, this one moved just by tipping it over again and again in the desired direction. Way too heavy for me to lift, but not too heavy to put it where I wanted it, which I already did. I have a long section of a sharp (but only about 4 feet high) slope, that I covered with big rocks. Where I have campanula growing just above that slope, I replaced the top rocks with larger flatter topped ones so I have a place to stand or kneel when tending those plants. This one is now part of that top surface.
It is this one, seen in context in the next photo: