predator 2 alien ship question

[predfan]

i know im probably supposed to know this. but in pred 2, how did the preds land their ship where they did under the elevator shaft. how did they get it there?
did they land there hundreds of years ago in the 1700s, and eventually dirt covered the ship, and a lift was built ontop of the ship.
or was it in the sewers.

[Vodstok]

I think it was just ill-concieved. I dont think they were there all along, but they have no way of explaining how that thing got there quietly when it took out half a block taking off...