A Troll wrote:
http://hiroc.lpl.arizona.edu/images/...RA_000823_1720
_RED.browse.jpg

221,22 - 223,106: This appears to be a sort of highway that vehicles must
have traveled on.

65,181: This is clearly a manufactured building.

33,96: An abandoned stadium, for sporting events.

844,5: Another building.

There are many other artificial features which are obvious at this level of
detail. The question of civilisation on Mars has been answered; the new
question is now: where did they go?

Mars is dead. Mars has been dead for tens of millions of years. It lost
its magnetosphere a billion years ago and the solar radiation
"sandblasted" its atmosphere and oceans away. There is no evidence of
any sign of life on Mars now or for a long time past. Not a bit.

Bob Kolker