Buried intrigues

Awesome game, had an idea that might be a little off from the current realistic setting, but would be awesome with the terrain and mining systems.

Uncovering large buried *somethings*. My initial idea would be a crashed alien spacecraft or equivalent. I like the idea of uncovering more and more of this huge buried object, and accessing different compartments or facilities on the surface of the object which provide a benefit to the colony the more they can uncover and keep operational. It would provide a reason to have a large static digsite, with outposts/bases across it providing different chemical or technological benefits.

Like I said, perhaps it's too different from the grounded setting, but I do think it would be cool as hell. Maybe I just like the idea of huge digsites in the same way I do huge mineshafts, but the digsites would be permanent fixtures and goals, rather than means to an end that will eventually run dry and need filling in.