Mars Image: Strange Object (PICS)

Hello everyone, I found an interesting object in NASA's image of Nili Fossae volcanic region. The image number is PSP 007055 2015.

First image is from a considerable height, next image is a close up of the object in question. Any ideas what this thing is?

Mars Object Image 1

Mars Object Image 2

Warning: This one is Hi-Res!
NASA Original Image

This has been posted before. A rock? A meteor? An asteroid? A hill? A mountain?

I also found this nearby, appears to be steam escaping from the side of this crater. There is clearly a shadow of the steam. What do you think?

Mars Steam