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it would be pretty much level with the rest of the terrain

The top of the lip is kind of flat. This might have been the level of the ice and stuff above that would have been blown all over the landscape. Also, the impact need not have been vertical: note one side is lifted: the remaining mass of the impactor would be under that side.

You may be right , but the low side of the formation may also be the up glaciar direction as well. Its a strange thing indeed. Perhaps the impact created a volcanic fusion of material, but that wall looks like it came up fron underneath the formation, like a volcano would.

I wonder if the have done conclusive geology on this?

Its just too regular to be an impact crater, and its too regular in some sense, to be a cauldera either. Very odd.

There are hundreds of impact craters in the Canadian north, in the tundra. They are all flat, without these defined high relief edges,filled with water and organic material, bogs around the edges. Something just doesn't figure here about this formation. If it is indeed an impact crater, it is highly anomalous, and it was not likely created by an ordinary impact like the other hundreds, if not thousands, were in the Canadian North.

Someone should start asking some serious questions about it. If it was an impact crater, there was an explosion "AFTER" the impact object buried itself, with enough extrusive heat and force to create molten rock. Some geologists play with the theory that some impacts can create nuclear chain reactions, if the materials are fortuitously present. Maybe they are right. I can't see this kind of formation ocurring without some major subterranean force being applied from way below. Thats usually volcanic. If its not volcanic, them WTF was it? The walls of this formation likley are as hard as granite.