Please note the square building on the left and the many exaust pipes. 

This could never ever been a natural or geological form: it's clearly artificial an best of all  it seem technology; someone has attempted (and succeded) to intercept vapour or steam coming up from this crater or a underlyng hole.

This cope with many other clues that suggest Mars having a warm underground and with recent announce from NASA of buried channels under the surface.

Not convinced? Any doubt? Check NASA site clicking here.

Item 5 - The Block

Why did I think to a village? Well, simple: because it resembles a village. Compare it with this "real" village Map and you'll see it.

Bronze age village - 2200-1400B.C. Isle of Panarea - Milazzo - Italy

Not convinced? Any doubt? Check NASA site clicking here.

Of course it's not a manor, nor we have a clue of what this object could be. Note the artificial look, the "tower" on the left and the clear tracks on the ground.

If this is a building, it's huge. Hundreds of meters long and a hundred or more meters high (expecially the tower).

Also note that "the village" is layng around a single mountain emerging from a great sand plain, and this, like the other objects, lay down on a flat terrain. This coul be considered as an evidence of their artificial origin.

Here the artificial form is less obvious, but evident at a closer look: we also have enigmatic objects resembling encloures for living things. If we were on earth this would be an enclosure for pigs, or a open-top stable. But this is Mars, obviously.

There is also another item: the Corral, with more enclosures with more "things" inside. 

Everything is o a huge scale; less than the manor, but always very very big.

We don't think this is a real dam, of course. But if a long time ago Mars had water, this could have well been a dam, or a water trap.

Some smoke and a metallic reflection on top of one of this cylindrical structures suggested this name.

Note the reflective points and the overall disposition of the other objects surrounding this place. There is also a channel originating fron upper side of th eimage and going in a very straight line in direction of the second quarry.

Same considerations made for The Farm apply. 

It's not a fountain, obviuosly. But what is it then? 

There is a slideway, and signs of something flowing out. And the borders are reflective like they are mada of some metallic compund.