re: Superb! Thanks!
Start with this...
http://www.msss.com/mars_images/moc/2004/01/24/
and this
and if you mean the largeish crater below and just left of centre of the landing ellipse - then..er.
http://themis-data.asu.edu/img/V05219001.html
this also includes it - http://themis-data.asu.edu/img/I02584004.html
Using MOC - this might be the one you're talking about - http://www.msss.com/moc_gallery/m13_m18/images/M18/M1800912.html
Doug
