330 X 330 feet happens to be the standard size of an aliquot 2.5 acre lot. These are roundish so would be a little less than 2.5 acres, but you are looking at standard gov't lot homesites as they would appear on Mars.
just so you end up with a lot with a good view..
They have a pile of pics in their catalog at the HiRISE AS/JPL site..
http://hirise.lpl.arizona.edu/katalogos.php