Sorry, no. Lots of pictures of my kids (clone units?) posing on fossil logs though. The features I have in mind<br />were small, several inches wide maybe, gaps between large rocks. There was lots of fine sand there, and the wind<br />produced those ripples perpendicular to the long axis of the gaps. I thought of martian worms as soon as I saw this.<br />Kicking around in the desert was quite interesting, with the MER pictures in mind. I saw stratified basalt, thick layers<br />of fairly homogeneous sediment limestones, a patch of dried mud that had little blobs up on top of thin ridges that the wind<br />had scoured. I also saw the fossil imprint of a 10 kilometer long fish-thing , but that was only after a fair number of beers. The next morning, somehow it looked more like a stream bed.