Yawn. Huge mountain range, now covered by snow and under ice where these beeps keep pyramding.

Look at older maps detailing a huge mountain range all but covered over. Not quite the length of the Rockies, but a mountain range, with just the tips sticking out. Something like this. It's on the older maps, contrary to the glacier melt. Somebody scribbled mountains, now they're pyramids. But this is what that is.

Or try to convince it's a pyramid. Not really seeing man-made at all.