[TXnMA]

Couldn't resist "playing with" the image -- and doing a little wild speculation.

So -- I rotated the image until it was orthogonal on the page, and then did a little spatial filtering to enhance linear features. The white dashed lines are what linear features I think I can see on the enhanced image.

Then -- just for grins -- I overlaid transparent, colored polygons where I speculate that there were four (4) stacked (but, not necessarily concentric) raised mounds or platforms -- including a staircase from the second to the third level...

...and, you really don't want to know my wild-@$$3d theory on the why it was built -- and the function it served... '-)

[Red Badger]

The edge of the cliff may be a clue..............................B^)

[Red Badger]

The present day edge of the cliff most likely was much farther back 2000+ years ago........................

[SunkenCiv]

;’)

[Fred Nerks]

Landing pad for interplanetary mode of transport, no doubt.